Enter the current security value ($) and the previous security value ($) into the Return on Security Calculator. The calculator will evaluate and display the Return on Security.

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## Return on Security Formula

The following formula is used to calculate the Return on Security.

**ROS = (CSV-PSV) / PSV * 100**

- Where ROS is the Return on Security (%)
- CSV is the current security value ($)
- PSV is the previous security value ($)

## How to Calculate Return on Security?

The following example problems outline how to calculate Return on Security.

Example Problem #1:

- First, determine the current security value ($).
- The current security value ($) is given as: 500.

- Next, determine the previous security value ($).
- The previous security value ($) is provided as: 300.

- Finally, calculate the Return on Security using the equation above:

ROS = (CSV-PSV) / PSV * 100

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

ROS = (500-300) / 300 * 100 = 66.67 (%)

Example Problem #2:** **

For this problem, the variables needed are provided below:

current security value ($) = 600

previous security value ($) = 400

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

ROS = (CSV-PSV) / PSV * 100** = ?**