Answer: 23 %
Step-by-step explanation:
Given : James estimated the total cost of groceries to be $50.
The actual cost of groceries = $65
The error value in the total cost= actual cost - estimated value
=$65-$50
Therefore, Error value=$15
The percent error=\(\frac{\text{error value}}{\text{actual cost}}\times100\)
\(=\frac{\$15}{\$65}\times100\)
\(=23.0769\%\approx23\%\)
Therefore, the percent error =23%
