Percent error is determined by the difference between the exact value and the approximate value of a quantity, divided by the exact value and then multiplied by 100 to represent it as a percentage of the exact value. Percent error = |Approximate value – Exact Value|/Exact value * 100.

What is the basic formula of percentage error?

Percent error formula is the absolute value of the difference of the measured value and the actual value divided by the actual value and multiplied by 100. ... Percent error calculation helps to know how close a measured value is to a true value.

What is an example of percent error?

Percent error is the difference between the actual value and the estimated value compared to the actual value and is expressed in a percentage format. ... For example, a 5% error indicates that we got very close to the accepted value, while 60% means that we were quite far from the actual value.