Then to get percent error well divide the error by the total amount and multiply by 100. We can do this multiplying both the numerator and the denominator by 2. Convert that to a percentage by multiplying by 100 and adding a sign.
Percentage Original numberAnother number x 100 What is the percentage of 45 out of 150.
Relative Error Absolute ErrorMeasured Value The Percentage Error is the Relative Error shown as a percentage see Percentage Error. However if percent error is equal to 100 percent or -100 percent then there is only one calculated solution and one solution of infinity. The absolute error is then divided by the true value resulting in the relative error which is multiplied by 100 to obtain the percentage error. Remember that 50 means half so to find 50 of a number just divide it by 2.