Examples · Money
Money, on a board
Not just a total, but which number is doing the work.
A price, a cost and a percentage are easy to mix up when they only exist as one answer on a calculator. CalcAnyway keeps each one on its own card, wired together, so changing one number moves every result that depends on it.
Most of the money examples are written for Japan, where the costs and the rules are Japanese, and they are in Japanese only: お金の活用例（日本語）. The ones here work the same anywhere.
Articles
Does 5% a year for 10 years mean a 50% increase?
No: 100 at 5% a year, compounded, reaches about 162.89 in 10 years, not 150. Each 5% applies to the balance at that point.
Margin vs. markup: what's the difference?
Cost 80, price 100: margin is 20%, markup is 25%. Same profit, different base, and a 20% target gives 100 or 96.