Deandre predicted that he would sell 37 pairs of shoes while working at the shoe store this weekend. He actually sold 28 pairs of shoes. What was the percent error of his prediction?
Responses
A24.32%
24.32%
B26.38%
26.38%
C31.5%
31.5%
D32.14%
To find the percent error, you would subtract the predicted value from the actual value, divide that difference by the predicted value, and then multiply by 100.
Using the given values:
Predicted value = 37
Actual value = 28
Percent error = ((Actual value - Predicted value) / Predicted value) * 100
Percent error = ((28 - 37) / 37) * 100
Percent error = (-9 / 37) * 100
Percent error ≈ -24.32%
Therefore, the correct answer is A) 24.32%.