For example, if the actual current is 5a and measured with a precision ammeter is 4.999a, the accuracy is:
(4.999/5)* 100%=99.98%
If the calculation error is: (│ actual value-measured value │/actual value) * 100%
=(│5-4.999│/5)* 100%=0.02%
Error plus precision equals the actual value.
. Multiply the quotient of division by 100% as a percentage.