Tech Bichar

Percentage Calculator

Work out any common percentage: X% of Y, what percent, increase, decrease and reverse percentage.

What is X% of Y?
%of
Result
X is what % of Y?
is what % of
Result
Percentage change
fromto
Change

Percentage formulas

X% of Y = Y × X / 100. “X is what % of Y” = X / Y × 100. Percentage change = (new − old) / old × 100.

Frequently asked questions

How do I calculate X% of Y?

Multiply Y by X and divide by 100. Example: 18% of 2,500 is 450.

How do I find a percentage increase?

((new − old) / old) × 100. A price from 80 to 100 is a 25% increase.

What is a reverse percentage?

If 1,180 already includes 18%, the base is 1,180 / 1.18.

Is this for GST too?

Use the dedicated GST calculator for CGST/SGST/IGST. This tool is the general math.

Private?

Yes. No data is sent anywhere.

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