Worked example library See a complete decision before building yours. These walkthroughs show what to collect, where it goes, and what deserves a second check. Every value is fictional and educational.
Compare three debts with one consolidation offer $22,900 across three balances 18.7% weighted current APR $485 maximum monthly payment Open Professional mode and choose Debt inventory. Replace each row with the statement balance, APR, and minimum. Add the lender offer, fees, term, and cash constraint. Compare total modeled cost—not only the payment. Open calculator for this walkthrough Build an out-the-door vehicle budget $34,000 vehicle price $6,000 trade value Local tax and fee assumptions Enter the vehicle price and financing assumptions. Open tax, fees, trade, and protection sections. Record dealer and bank offers separately. Stress-test the payment against your monthly limit. Open calculator for this walkthrough Turn a monthly limit into a home-price range Income and recurring debt Down payment and closing cash Taxes, insurance, and HOA Start with verified monthly income and debt. Set the maximum housing payment constraint. Add future events such as a rate reset or income change. Check the cash-to-close and reserve requirement. Open calculator for this walkthrough Price a service from real operating costs Owner compensation target Billable utilization Overhead and profit buffer Enter annual cost and realistic billable time. Separate recurring obligations in the portfolio table. Create offers for different contract structures. Save the workspace beside the client brief. Open calculator for this walkthrough Read a polynomial before graphing it f(x) = x² − 4x + 3 Coefficients 0, 1, −4, 3 Roots at 1 and 3 Match each coefficient to its labeled power. Inspect f(0) before changing the window. Zoom and point at the curve to read coordinates. Change one coefficient and observe what moves. Open calculator for this walkthrough Load a complete worked calculation Each link replaces the destination calculator’s inputs with a fictional, reproducible example. Edit any number to explore your own situation.
Real Estate Why is there still a balloon after years of mortgage payments? Compare contractual maturity with amortization. The balloon is principal still owed, not a second charge.
Load this example → Real Estate What will I owe when a five-year land loan matures? Payment affordability and the ability to repay or refinance the balloon are separate questions.
Load this example → Everyday Life What belongs in a moving budget beyond the mover quote? Itemize transport, labor, packing, travel, storage, insurance and deposits before adding your chosen buffer.
Load this example → Real Estate Will a renovation recover its cost when I sell? Separate estimated resale benefit from operating savings and personal enjoyment. Resale value is not guaranteed.
Load this example → Real Estate What happens to my payment after a $50,000 principal lump sum? A recast keeps the assumed rate and remaining term. Payment relief does not mean the lump sum was free.
Load this example → Real Estate Does available home equity mean I can afford another loan? Borrowing room is a modeled collateral limit, not approval. The second-lien payment still needs a budget.
Load this example → Real Estate How does construction interest differ from the permanent payment? The average-draw illustration is not a lender draw schedule. Budget delays and conversion terms separately.
Load this example → Automotive Is the lower dealer rate worth giving up a rebate? Compare both offers over the same term. This simplified model excludes tax, trade, add-ons and insurance; use the buyer worksheet for the complete deal.
Load this example → Automotive When could my loan balance fall below my car’s value? Recovery depends on an assumed depreciation path, not an appraisal. Inspect the horizon before treating the final month as an earlier recovery.
Load this example → Finance What does a 1% annual investment fee change over 25 years? This constant-return illustration isolates fees. It is not a forecast and excludes taxes, inflation and volatility.
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