# Online Calculator - Percentage

Calculation of the percentage of the difference between two values

## Percentage online calculator

The percentage calculator calculates the percentage of a starting or base value and a percentage value.

For example, what is the percentage if the base amount is 200 and the percentage amount 30? The percentage is 15%.

Base Value
Future Value

Decimal places

### Result

Percentage

Surcharge or discount

## Description of the parameters

Basic Value

The starting or base value.

Future Value

The future value after surcharge or discount on the base value.

## Calculate percentage

An example is used to calculate the percentage by which an initial value of 850 must increase. to reach the percentage of $$1000$$.

The basic value is known $$G = 850$$ and the percent value $$W = 1000$$.

The formula is $$\displaystyle P=\frac{W·100}{G}=\frac{1000·100}{850}=117.65$$

The percent value of $$1000$$ is $$117.65%$$ of the start value of $$850$$. So it needs an increase of $$117.65 - 100 = 17.65\%$$ to reach the percent value of $$1000$$.