Percentage calculator

Pick what you want to calculate and enter the numbers. The formula is shown under each answer.

Frequently asked questions

How do I calculate marks percentage?

Divide marks obtained by total marks and multiply by 100. For example 432 ÷ 500 × 100 = 86.4%.

How do I calculate percentage increase?

(New − Old) ÷ Old × 100. A negative result is a decrease.

Can I use decimals?

Yes, decimals work in every field.