Enter the first value and the second value into the Percentage Rate Calculator. The calculator will evaluate the Percentage Rate.

## Percentage Rate Formula

The following two example problems outline the steps and information needed to calculate the Percentage Rate.

PR = (V2-V1) / V1 * 100
• Where PR is the Percentage Rate (%)
• V2 is the first value
• V1 is the second value

To calculate the percentage rate, divide the change in value by the initial value, then multiply by 100.

## How to Calculate Percentage Rate?

The following example problems outline how to calculate Percentage Rate.

Example Problem #1:

1. First, determine the first value.
• The first value is given as: 100.
2. Next, determine the second value.
• The second value is provided as: 70.
3. Finally, calculate the Percentage Rate using the equation above:

PR = (V2-V1) / V1 * 100

The values provided above are inserted into the equation below and computed.

PR = (100-70) / 70 * 100 = 42.85 (%)

Example Problem #2:

For this problem, the variables required are provided below:

first value = 200

second value = 40