Free tool

Percentage calculator

Three everyday percent sums in one place.

20% of 150
30
20 is what % of 150
13.33%
Change from 20 to 150
650%

Make GST bills automatically

Khatadar does this math on every bill, prints GST invoices, tracks udhaar and stock. Free plan: 50 bills a month, no card needed.

Common questions

How do I find 20% of 150?

Multiply 150 by 20 and divide by 100. The answer is 30.

How do I find percent change?

(New − Old) ÷ Old × 100. From 80 to 100 is a 25% increase.

What percent is 30 of 120?

30 ÷ 120 × 100 = 25%.