Percentage calculator

Find a percentage of a value, percentage change, or an increase or decrease.

-100.00400.00
%
-100.00125.00
CALCULATION RECEIPT- / - / -
- , -Your receipt will appear hereFix the value in red to update the result.
PDF: calculation receipt.

How does it work?

Step 1Choose a calculation mode.
Step 2Enter the starting value and the percentage or final value.
Step 3Calculate and review the receipt breakdown.
X × p / 100 · Δ% = (B − A) / |A| × 100

Frequently asked questions

Multiply Y by X and divide by 100.