Percentage Calculator

Growth, discount, share and markup calculated in one go

How to use

Enter two numbers and click Calculate: share of total, percentage change, markup, discount and the product of the two percentages are all shown at once.

FAQ

Why is percentage change different from share? Change divides by the base value B while share divides by A - the denominators mean different things.

Privacy: every calculation runs inside your browser. Your files and text never leave your device.