8 pages
Finance
Percentages, loans, and prices, with the formula next to the result.
- CalculatorPercentage calculatorFind a percent of a number, what percent one number is of another, the change between two values, or a discount.
- CalculatorLoan paymentEstimate a fixed monthly payment from the amount, the annual interest rate, and the years, using standard amortization.
- GuideHow to calculate a percentageTurn “percent of” into a multiplication by moving the decimal, and keep the whole amount in view.
- GuideHow to calculate percent changeCompare two numbers as a percent of the starting value, and do not divide by the ending value.
- GuideHow a fixed loan payment is calculatedSee the standard amortization formula, and what a monthly estimate still leaves out of a lender’s quote.
- GuidePrincipal and interest, separatelyTell the amount you borrowed from the cost of borrowing it, using the same payment every month.
- GuideHow to round moneyRound a currency result to the cent at the end, and avoid rounding the inputs first.
- GuideHow to take a percent off a priceSubtract a percent of the price from the price, and do not add stacked discounts into one percent.