Question

Margie calculated that she would spend $175 on school supplies this year. She actually spent $97.50 on school supplies. What is Margie’s percent of error?

Answer 1

percent error = (approximate value - exact value) / (exact value) * 100

We also have to take the absolute value of whatever we get, so basically if you get a negative number, then you just forget about the negative sign and just take the positive number.


our approximate value is 175
And the exact value is 97.50

Can you plug in the numbers and tell me what you get?