What is the difference between adding and removing tax?

Adding tax multiplies up from a pre-tax figure. Removing works backwards from a total that already includes it — which is not the same sum, and the usual mistake is subtracting the percentage from the total.

Can it do percentage increase between two numbers?

Yes — enter both and it gives the change as a percentage, with the direction made clear.

Percentage Calculator

Six everyday calculations including tax added or removed at a rate you set.

Runs in your browser — nothing uploaded

How to percentage calculator

Pick the calculation you need.
Enter your numbers.
Read the answer, with the working shown so you can check it.

Questions

What is the difference between adding and removing tax?: Adding tax multiplies up from a pre-tax figure. Removing works backwards from a total that already includes it — which is not the same sum, and the usual mistake is subtracting the percentage from the total.
Can it do percentage increase between two numbers?: Yes — enter both and it gives the change as a percentage, with the direction made clear.

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