Enter the increase in production output and the marginal product into the Calculator. The calculator will evaluate the Variable Input.

## Variable Input Formula

VI = IP / MP

Variables:

- VI is the Variable Input ()
- IP is the increase in production output
- MP is the marginal product

To calculate Variable Input, divide the increase in production output by the marginal product.

## How to Calculate Variable Input?

The following steps outline how to calculate the Variable Input.

- First, determine the increase in production output.
- Next, determine the marginal product.
- Next, gather the formula from above = VI = IP / MP.
- Finally, calculate the Variable Input.
- 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.

increase in production output = 74

marginal product = 30