How to work on percent deviation calculator?

How to Calculate Percentage Error

The calculation for the error rate is used to evaluate the degree of error in the calculationsand data. The calculation for the percentage of error is simple and straightforward. Here are the steps for the evaluation of error rate.

instructions:

Things you'll need:

1.The formula for calculating the error rate is estimated value - actual value / actual value * 100%.

2.Subtract the actual value, the correct value from the value which is its estimated value. The result can be negative, however, leave as a negative. The result is known as the absolute error.

3.Divide the absolute error, calculated from the previous step for the actual value. The result should be a number that is less than 1, for example: 0.11 or 0.95. The resulting value is called the relative error.

4.To find the value of error rate, multiply the relative error of the previous stage by 100%. Do not forget to include a percent sign after the numeric portion of the answer.