Enter the total number of nonconforming units and the total sample size into the Calculator. The calculator will evaluate the Percent Nonconforming.

## Percent Nonconforming Formula

PNCF = NC / SS * 100

Variables:

- PNCF is the Percent Nonconforming (%)
- NC is the total number of units nonconforming
- SS is the total sample size

To calculate Percent Nonconforming, divide the total number of units nonconforming by the total sample size, then multiply by 100.

## How to Calculate Percent Nonconforming?

The following steps outline how to calculate the Percent Nonconforming.

- First, determine the total number of units nonconforming.
- Next, determine the total sample size.
- Next, gather the formula from above = PNCF = NC / SS * 100.
- Finally, calculate the Percent Nonconforming.
- 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 number of units nonconforming = 75

total sample size = 90