Specific Heat of Aluminum and Percent Error Question

Question

In the lab ,Maddie Grace found that the specific heat of aluminum was 0.789 Joules per gram degree celsius. Theoretically the specific heat should be 0.900. What was her percent error? *

Answer 1

0.900 - 0.789 = 0.111

0.111/0.900 (x100%) = 12.3% error

0.789/0.900 = 0.877 = 87.7 % of actual

100 - 87.7 = 12.3% error