Enter the current period sales ($) and the previous period sales ($) into the Change in Sales Calculator. The calculator will evaluate and display the Change in Sales. 

Change in Sales Formula

The following formula is used to calculate the Change in Sales ($). 

ΔS = CS - PS
  • Where ΔS is the Change in Sales ($)
  • CS is the current period sales ($) 
  • PS is the previous period sales ($) 

To calculate the change in sales, subtract the previous period sales from the current period sales.

How to Calculate Change in Sales?

The following example problems outline how to calculate Change in Sales ($).

Example Problem #1:

  1. First, determine the current period sales ($).
    1. The current period sales ($) is given as: 7,000.
  2. Next, determine the previous period sales ($).
    1. The previous period sales ($) is provided as: 5,000.
  3. Finally, calculate the Change in Sales ($) using the equation above: 

ΔS = CS – PS

The values given above are inserted into the equation below:

ΔS = 7,000 – 5,000 = 2,000 ($)

Example Problem #2: 

For this problem, the variables needed are provided below:

current period sales ($) = 700

previous period sales ($) = 300

This example problem is a test of your knowledge on the subject. Use the calculator above to check your answer. 

ΔS = CS – PS = ?