Enter the number of positive results and the number of tests into the Positivity Rate Calculator. The calculator will evaluate the Positivity Rate.
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Positivity Rate Formula
The following two example problems outline the steps and information needed to calculate the Positivity Rate.
PO = P / T * 100
- Where PO is the Positivity Rate (%)
- P is the number of positive results
- T is the number of tests
How to Calculate Positivity Rate?
The following example problems outline how to calculate Positivity Rate.
Example Problem #1:
- First, determine the number of positive results.
- The number of positive results is given as: 30.
- Next, determine the number of tests.
- The number of tests is provided as: 60.
- Finally, calculate the Positivity Rate using the equation above:
PO = P / T * 100
The values provided above are inserted into the equation below and computed.
PO = 30 / 60 * 100 = 50.00 (%)
Example Problem #2:
For this problem, the variables required are provided below:
number of positive results = 50
number of tests = 60
Test your knowledge using the equation and check your answer with the calculator..
PO = P / T * 100 = ?
