Enter the total decline and the total value into the Calculator. The calculator will evaluate the Decline Rate. 

Decline Rate Formula

DR = TD / TV * 100


  • DR is the Decline Rate (%)
  • TD is the total decline
  • TV is the total value

To calculate Decline Rate, divide the total decline by the total value, then multiply by 100.

How to Calculate Decline Rate?

The following steps outline how to calculate the Decline Rate.

  1. First, determine the total decline. 
  2. Next, determine the total value. 
  3. Next, gather the formula from above = DR = TD / TV * 100.
  4. Finally, calculate the Decline Rate.
  5. After inserting the variables and calculating the result, check your answer with the calculator above.

Example Problem : 

Use the following variables as an example problem to test your knowledge.

total decline = 75

total value = 200