Percentage Calculator
Calculate the share, the value after a markup and the value after a discount from a base value and one percentage rate quickly and clearly in your browser.
Calculate now
Estimate a percentage share, the value after a markup and the value after a discount from one base value and one percentage rate. The tool is useful for discounts, price changes, VAT, school exercises, statistics, salary adjustments and simple financial calculations.
FAQ about Percentage Calculator
How do you calculate the percentage value?
The percentage value is base value × percentage rate ÷ 100. Example: 20% of 250 is 50.
How do you calculate the percentage rate?
The percentage rate is percentage value ÷ base value × 100. Example: 50 out of 250 equals 20%.
How do you calculate the base value?
The base value is percentage value ÷ (percentage rate ÷ 100). Example: 50 is 20% of 250.
Does it work for discounts?
Yes. The percentage decrease is especially useful for that. It shows the markdown and the new price after the discount.
Can I also use it for VAT?
Yes for basic percentage logic. If you want to calculate net, gross and VAT share directly, the VAT calculator is the better follow-up tool.
Why is a 20% increase not the opposite of a 20% decrease?
Because each calculation is based on a different current base value. After one change, the new value becomes the basis for the next percentage calculation.
Are the results binding?
No. The calculator is intended for general information and orientation only. Real decisions should always be based on the original source data.
Does this replace professional advice?
No. It helps with understanding and comparisons, but it does not replace tax, legal or financial advice.