Final answer:
The MAPE is a measure of forecast accuracy. To calculate the MAPE through month 5, use the formula and round the result to 2 decimal places.
Step-by-step explanation:
The MAPE (Mean Absolute Percentage Error) is a measure of the accuracy of a forecast. To calculate the MAPE through month 5, you would need the actual values and the forecasted values for each month from month 1 to month 5. The formula for MAPE is:
MAPE = (1/n) * Σ |(Actual - Forecast)/Actual| * 100
Plug in the actual and forecasted values for each month and calculate the MAPE. Round the result to 2 decimal places.