Aatikah plans to buy books at a book fair. She thinks she will need $30.00 to purchase the books. She only spends $19.75. Find the percent error in her prediction. Round your answer to the nearest whole number.(1 point)
Responses
58%
58%
2%
2%
52%
52%
1%
1%
To find the percent error, we use the formula:
Percent Error = (Actual Value - Predicted Value) / Predicted Value * 100
In this case, the actual value is $19.75 and the predicted value is $30.00. Plugging these values into the formula, we get:
Percent Error = (19.75 - 30.00) / 30.00 * 100
Percent Error = -10.25 / 30.00 * 100
Percent Error = -0.342 * 100
Percent Error = -34.2
Rounding this to the nearest whole number, we get:
Percent Error = -34%
Therefore, the percent error in her prediction is 34%.