Percentage error calculator

Exact value: 
Approximated value:
 
Percent error:
Absolute error:

Percentage error formula:

Absolute error: ε = | V - Vapprox |

Then the percent error δ = 100% × ε / V = 100% × | V - Vapprox | / V

For example, Exact value is 4, Approximated value is 3, then δ = 100% × | 4 - 3 | / 4 = 25%. Absolute error = | 4 - 3 | = 1.

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