Using the Business calculators
Enter your own figures to get an instant estimate, then read the formula, worked example and FAQ on each tool for the detail behind the result. Every calculator runs privately in your browser — nothing you type is stored or sent anywhere.
Frequently asked questions
Margin or markup?
Margin is profit as a percent of price; markup is as a percent of cost — they differ.
What discount rate should I use for NPV?
Your cost of capital or required rate of return.
Is a shorter payback always better?
Usually, but it ignores cash flows that arrive after payback.