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24 of 24 answers

Pay & career$90,000 a year is how much an hour?

At 40 hours a week for 52 weeks, $90,000 a year is $43.27 an hour before taxes. At the same annual pay, 50-hour weeks work out to $34.62, 60-hour weeks to $28.85, and 80-hour weeks to $21.63. The useful comparison is the pay relative to the time the job actually requires.

Make it concrete

Divide annual gross pay by weekly hours × weeks worked. If paid leave reduces actual hours worked without reducing salary, the effective rate per hour worked rises. Keep the convention consistent when comparing offers.

Keep in mindThis is an effective-pay comparison, not an overtime calculation. Salary alone does not determine overtime eligibility.

Compare salary and hourly pay
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Pay & careerShould I build my budget from salary or take-home pay?

Use the money available after taxes and payroll deductions to plan spending. Gross salary helps you compare offers, but it is not the amount available for rent, food, travel, or saving. The usual 50/30/20 guideline divides take-home pay among needs, wants, and saving or debt goals.

Make it concrete

If monthly take-home pay is $5,000, a 20% savings allocation is $1,000. That is an illustration, not a tax estimate for any particular salary. Reconcile retirement saving and benefits already deducted through payroll so you do not count them twice.

Keep in mindA budgeting rule is a starting point. Bay Area housing, family responsibilities, debt, and retirement goals can require a different allocation.

Build a budget with after-tax income
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Pay & careerShould I take the highest-paying job out of college?

Compare the whole opportunity: pay you can rely on, hours, benefits, manager quality, training, responsibilities, and the opportunities the experience could create. A lower-paying role can be a good investment in your development, but only if the benefits are credible and you can afford the difference.

Make it concrete

Ask: What will I be able to do after two years here? Who will teach me? What work will I own? Where do people in this role move next? Then compare the answers with your household budget and interests.

Keep in mindA prestigious name does not guarantee good training or a promotion. Treat bonuses, equity, and future career moves as uncertain until you understand the terms and evidence.

Explore SCU careers, clubs, pay stages, and credentials
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Pay & careerWhat does a $5 million home actually cost to own?

Start with the loan payment, then add property taxes, insurance, maintenance, utilities, any HOA dues, landscaping, and reserves for major repairs. Keep the down payment and closing costs separate from recurring spending. A mortgage payment alone is not an all-in housing budget.

Make it concrete

Illustrative assumptions: $1 million down, a $4 million fixed loan, 30 years, and 7% interest produce about $26,612 per month in principal and interest. Adding assumed property taxes of 1.2% of purchase price and maintenance of 1% gives about $35,779 per month before insurance, utilities, HOA dues, landscaping, and other costs. These rates are scenario inputs, not quotes or a property-specific tax bill.

Keep in mindDo not use the seller's California tax bill as your acquisition forecast. A change in ownership can trigger reassessment. Budget major repairs explicitly and avoid counting landscaping in both maintenance and a separate line.

Compare full lifestyle and housing scenarios
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Real estateDoes a 7% cap rate mean I earn a 7% return?

No. Cap rate compares a property's annual net operating income with its price or value. It does not include your financing, income taxes, capital expenditures, or eventual sale. Cash-on-cash return compares a defined period's cash flow to equity with the equity invested; IRR considers the timing of cash flows over the investment.

Make it concrete

A $1 million property with $70,000 of NOI has a 7% cap rate. With a $600,000 interest-only loan at 5% and $400,000 of equity, cash after interest is $40,000: a 10% cash-on-cash return before capital expenditures, reserves, income taxes, and transaction costs. At 9% interest, the same simplified return falls to 4%.

Keep in mindA higher equity return produced by debt comes with greater downside exposure. State exactly which cash outflows your return calculation includes.

Compare cap rate and cash-on-cash return
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Real estateWhy isn't NOI the cash I get to keep?

Net operating income measures property operating revenue less property operating expenses. It generally excludes debt principal and interest, depreciation, income taxes, and capital expenditures. You still need to pay the applicable cash costs before determining what can be distributed to investors.

Make it concrete

Start with NOI, subtract debt service, then subtract the capital spending and reserves required by your model. Separately calculate investor taxes where relevant. Label each step instead of calling every subtotal cash flow.

Keep in mindNOI is not a universal GAAP line item. Underwriting conventions, including reserve treatment, can differ. Reconcile the lender's definition with your own.

Bridge NOI to cash after debt service
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Real estateWhy can mortgage rates rise after the Fed cuts rates?

The Fed directly targets an overnight interest rate. A long-term fixed mortgage is priced in a different market, where expectations about future interest rates, inflation, and economic conditions matter. Treasury and mortgage-backed security yields, lender costs, and loan-specific risks also affect the rate offered to a borrower.

Make it concrete

If a widely expected Fed cut has already been priced into bonds, the announcement may change little. If investors become more worried about future inflation at the same time, long-term yields and mortgage rates can rise.

Keep in mindDo not model a Fed cut as an equal reduction in a future mortgage rate. Stress-test refinancing at several rates and loan amounts.

Test payment and balloon assumptions
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Real estateWhat is the difference between a loan's term and amortization period?

The term tells you when the loan is due. The amortization period determines how scheduled principal payments are spread out. If payments are calculated over 30 years but the loan matures in five years, a substantial balance can still be due at the end of year five.

Make it concrete

A five-year term with 30-year amortization is not a promise that you can keep the loan for 30 years. At maturity, you need cash, sale proceeds, an agreed extension, or replacement financing to settle the remaining balance.

Keep in mindA low monthly payment can hide a large balloon. Model the maturity balance, not just this year's debt service.

Calculate a mortgage payment and balloon
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Real estateCan a property have a refinancing problem even when interest rates fall?

Yes. A new lender may support a smaller loan because property income or value has fallen, underwriting standards have tightened, or another lending limit is binding. A lower interest rate helps debt service but does not automatically replace all the debt coming due.

Make it concrete

If $9 million is due and the new lender will advance $8 million, the borrower needs another $1 million plus applicable fees and reserves. The source might be additional equity, a sale, or a negotiated restructuring; none is automatic.

Keep in mindUnderwrite the new loan amount and the maturity payment separately. 'We will refinance' is an assumption that needs support.

Find the binding loan-sizing constraint
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Real estateHow do DSCR, LTV, and debt yield differ?

DSCR compares operating income with debt service. LTV compares the loan with the property's value. Debt yield compares operating income with the loan amount. They answer different questions, so a lender can require all three and size the loan to the tightest limit.

Make it concrete

With $120,000 of annual NOI, $96,000 of annual debt service, a $1 million loan, and $1.5 million of value: DSCR is 1.25×, debt yield is 12%, and LTV is 66.7%. Use the lender's definitions and the same measurement period.

Keep in mindThere is no single minimum DSCR or debt yield that applies to every lender, property, and market.

Compare DSCR and debt yield
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Real estateIs a fully leased building always worth more than a vacant one?

No. Occupancy is only one input. A long lease at below-market rent, expensive landlord obligations, weak tenant credit, or restrictive renewal rights can limit value. Vacancy has its own costs and risks, including downtime, leasing commissions, tenant improvements, and uncertainty about future rent.

Make it concrete

Compare the cash flows allowed by the existing leases with a realistic lease-up forecast for the vacant property. A vacant building can be worth more in some cases, but that conclusion must survive the cost and risk of finding tenants.

Keep in mindDo not replace current contractual rent with market rent before the lease allows it.

Model lease economics
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Real estateIs a cap rate the same as a discount rate?

No. A cap rate relates one year's NOI to value. A discount rate converts a sequence of future cash flows into present value. Growth, timing, capital spending, and sale assumptions help explain why the two rates differ.

Make it concrete

The shortcut cap rate = discount rate − growth rate comes from a constant-growth perpetuity with consistent cash-flow definitions. It is not a universal rule for every property or every definition of NOI.

Keep in mindDo not use a cap rate to discount every year's cash flow simply because both inputs are percentages.

See the cap rate versus discount rate comparison
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Business & dealsHow can a profitable company still run out of cash?

Profit and cash move on different schedules. Revenue may be recorded before customers pay, inventory may be purchased before it is sold, and equipment can require cash well before its cost appears in earnings. Debt repayments also use cash without being operating expenses.

Make it concrete

A growing company can report a profit while cash is tied up in receivables, inventory, and capital spending. Forecast cash receipts and payments alongside the income statement, then identify when financing is needed.

Keep in mindEBITDA is not cash available to spend. It leaves out taxes, capital expenditure, working-capital investment, and financing cash flows.

Calculate free cash flow
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Business & dealsWhen should I use FCFF instead of FCFE?

Use free cash flow to the firm to value operating cash flows available to debt and equity providers, before debt financing cash flows. Discount FCFF at an appropriate WACC. Free cash flow to equity includes the effects of debt financing and is discounted at the cost of equity.

Make it concrete

A common FCFF formula is EBIT × (1 − tax rate) + depreciation and amortization − capital expenditure − increase in noncash operating working capital. Forecast taxes and reinvestment carefully when this shortcut does not fit the business.

Keep in mindMatch the cash flow with the discount rate. After valuing operations, bridge to equity by addressing cash, debt, and other relevant non-operating assets or claims.

Compare FCFF and FCFE
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Business & dealsWhat is a working-capital peg in an acquisition?

It is the agreed target amount of operating working capital that the seller is expected to deliver at closing. The purchase agreement defines the included accounts, accounting methods, and price-adjustment mechanism. The goal is to deliver the business with the agreed level of working capital needed to operate.

Make it concrete

If the agreement sets a $5 million target and closing working capital is $4.2 million, a dollar-for-dollar adjustment could reduce the price by $800,000. The actual result depends on the contract, including any collars, exclusions, or dispute provisions.

Keep in mindThis 'peg' is unrelated to the P/E-to-growth, or PEG, valuation ratio. Cash, debt, deferred revenue, and other balances are not automatically treated the same way in every deal.

Explore financial diligence as a career
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Business & dealsIs ARR the same as revenue, profit, or cash?

No. Annual recurring revenue is an annualized operating metric for qualifying recurring business. It is not automatically GAAP revenue, cash collected, or profit. Define which contracts, discounts, usage, and churn assumptions are included before comparing companies.

Make it concrete

A recurring subscription producing $10,000 of monthly recurring revenue might imply $120,000 of ARR under the stated definition. That does not mean the company has already recognized or collected $120,000.

Keep in mindARR and IRR are unrelated. ARR describes recurring business activity; IRR measures an investment's return based on its cash flows.

Build a subscription revenue model
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Business & dealsDoes faster growth always make a business more valuable?

No. Growth creates value when the expected return on the additional investment exceeds its cost of capital. Revenue can grow while the company consumes cash and destroys economic value.

Make it concrete

If additional invested capital is expected to earn 8% while its appropriate required return is 12%, the growth does not clear the return hurdle. Ask how much capital the growth needs, when the benefits arrive, and how uncertain they are.

Keep in mindHigh growth is not a substitute for attractive unit economics, a credible path to returns, or enough funding to reach the next milestone.

Test unit economics
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Business & dealsDoes a SAFE let a founder raise money without dilution?

No. A SAFE provides rights to future equity under its terms. Delaying the issue of shares does not remove the economic dilution. Model the SAFE, other convertible securities, the option pool, and the next financing together.

Make it concrete

Under the standard YC post-money valuation-cap approach, a $500,000 investment at a $5 million post-money cap implies 10% before dilution from the next priced round and its option-pool increase, when the cap determines conversion. A low-priced round or different documents can change the result.

Keep in mindA standard YC SAFE is not a convertible note: it has no interest or maturity date. Terms and legal forms vary; use the actual documents.

Compare a SAFE and convertible note
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Business & dealsHow much runway does a startup actually have?

For steady spending, divide available cash by monthly net cash burn. For a changing business, build a month-by-month cash forecast. Hiring, collections, capital spending, restricted cash, and debt payments can make a simple average misleading.

Make it concrete

$1 million of available cash divided by $100,000 of monthly net burn suggests ten months. If the company hires ahead of revenue, that estimate may shorten. Show a downside case and a financing decision date before cash reaches zero.

Keep in mindAn expected funding round is not cash until it closes. A company can be growing quickly and still run out of money before reaching sustainability.

Model runway and changing burn
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Business & dealsDo software and AI businesses have almost no costs as they grow?

No. Additional users may cost less to serve than in some physical businesses, but hosting, inference, support, security, payment processing, sales, and engineering still matter. AI usage can create substantial variable costs.

Make it concrete

Build three views: today's spending, the cost of paying recurring contributors reasonably, and the organization needed at a larger scale. Classify expenses consistently and explain what each contribution-margin measure includes.

Keep in mindFounder time is not economically free. Time saved for a customer also does not automatically become cash saved unless spending or revenue changes.

Examine customer acquisition and unit economics
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Better analysisWhat is the difference between a target, a forecast, and an actual result?

A target is what you want to achieve. A forecast is your best current estimate of what will happen. An actual result is what happened. Keeping them separate makes it possible to learn from performance rather than rewriting the plan to match reality.

Make it concrete

Compare actual results with the forecast to assess prediction quality. Compare actual results with the target to assess progress against the goal. Investigate price, volume, timing, and cost differences rather than reporting one unexplained variance.

Keep in mindA management target is not independent evidence that the revenue will occur.

Practice entrepreneurial finance
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Better analysisWhat makes a financial model credible?

A credible model connects the business to cash flows and makes uncertainty visible. Distinguish verified facts, management claims, your assumptions, and the judgment behind your recommendation. Each important input should have a source or an explicit rationale.

Make it concrete

For a revenue forecast, explain the customer count, pricing, conversion, retention, and timing assumptions. Change the most important inputs and show when the recommendation stops making sense.

Keep in mindA polished spreadsheet, confident presentation, or AI-generated citation does not establish that an assumption is true. Read the underlying source and confirm what it measures.

Test valuation sensitivity
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Better analysisDoes taking more risk guarantee a higher return?

No. Required return is the compensation an investor demands for taking risk. Expected return is the outcome estimated before investing. Realized return is what actually happens. Some risks offer too little expected reward to be worth taking.

Make it concrete

Before choosing an investment, ask how much could be lost, how likely that loss is, whether you could survive it, and what alternatives are available. Leverage can increase the chance that a temporary setback becomes a permanent loss.

Keep in mindThe biggest possible upside is not the same as the best decision. Consider liquidity, concentration, contractual obligations, and the ability to change course.

Explore loss and recovery
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Better analysisWhat should a good investment recommendation include?

State the decision, explain the evidence, show the economics, identify what could go wrong, and say what would change your mind. Compare serious alternatives before selecting one. The audience should be able to follow the reasoning without relying on your confidence alone.

Make it concrete

Compare investing now, declining, and waiting for a specific milestone. For each, show the strongest argument, the assumptions, and the downside. Then explain why your preferred option best fits the objective and constraints.

Keep in mindEvery number on a slide should be something you can explain. Spend time stress-testing the analysis and practicing questions, not just adding slides.

Apply the framework to a real estate capstone
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Adapted from Devon Coombs’s teaching explanations. Examples are illustrative; rates, financing terms and individual circumstances vary. For exam rules, program eligibility and current opportunities, use the linked official sources in the career guide.

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Written for students, founders and professionals who want to explain a financial decision clearly.

This is Devon Coombs’s independent educational resource, not an official Santa Clara University advising service.