Calculate increase ratio, total increase, initial value, or final value from any two inputs, with ratios shown as decimals or percentages.

Increase Ratio Calculator
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Increase Ratio Formula

The following formula is used to calculate the Increase Ratio. 

IR = TI / IV

  • Where IR is the Increase Ratio
  • IV is the initial value 
  • TI is the total increase (final value − initial value)

To calculate the increase ratio, divide the total increase by the initial value. To express the result as a percent increase, multiply the ratio by 100%.

How to Calculate Increase Ratio?

The following example problems outline how to calculate the Increase Ratio.

Example Problem #1:

  1. First, determine the initial value.
    • The initial value is given as: 5.
  2. Next, determine the final value.
    • The final value is provided as: 15.
  3. Finally, calculate the total increase (TI = final − initial), then compute the Increase Ratio: IR = TI / IV (multiply by 100 to express it as a percent).

IR = (FV − IV) / IV

The values given above are inserted into the equation below and the solution is calculated:

TI = 15 − 5 = 10; IR = 10 / 5 = 2.0000 (decimal) = 200.00%

Example Problem #2: 

For this problem, the variables required are provided below:

initial value = 6

final value = 8

Test your knowledge using the equation and check your answer with the calculator above.

IR = (FV − IV) / IV = (8 − 6) / 6 = ?