This online calculator gives the percentage of the value. It also calculates the percentage of the sum (e.g. the income tax of the net salary) and the percentage of the difference (e.g. VAT of the gross amount).

This page exists due to the efforts of the following people:


Maxim Tolstov





Created: 2015-07-26 12:33:47, Last updated: 2020-11-10 03:56:49
Creative Commons Attribution/Share-Alike License 3.0 (Unported)

This content is licensed under Creative Commons Attribution/Share-Alike License 3.0 (Unported). That means you may freely redistribute or modify this content under the same license conditions and must attribute the original author by placing a hyperlink from your site to this work Also, please do not modify any references to the original work (if any) contained in this content.

Simple percentage calculator:

PLANETCALC, Percentage of

Percentage of

Digits after the decimal point: 2

Percentage of the sum or the difference helps to determine salary taxes and VAT:

PLANETCALC, Percentage of sum or difference

Percentage of sum or difference

Digits after the decimal point: 2
C. What is B% of A (C = A%B)
D. Percentage of sum D = (A+D)%B
E. Percentage of difference E = (A-E)%B

First of all, the calculator calculates the percentage of a given number. i.e., a given number A is taken as 100%; as a result, we have a number C that is B percent of A.

Furthermore, the problem is getting complicated. Assume we have a number A, which is the remainder of subtracting B percent of some original value, which is 100%. For example, you may determine your taxes amount by net salary and tax rate.

The final problem is formulated as follows: here is some number A, consisting of the initial number and the percentage of B added to that number. It’s required to determine the percentage amount E. A similar problem is solved by every accountant when they calculate input VAT of the gross purchase amount.

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PLANETCALC, Percentage