Increase and Decrease by Percent
Add or subtract a percent from a base value (markup or discount).
%
Result
1 150,00
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Formula
new = base × (1 ± p / 100)
Example: 1,000 + 15% = 1,150
Methodology
Increase: new = base × (1 + p/100). Decrease: new = base × (1 − p/100).
Example
1,500 CZK + 8% = 1,620 CZK. 20% off 2,000 CZK = 1,600 CZK.