Calculate the mean absolute percentage error for the cost equation from requirement 1.

3. Calculate the mean absolute percentage error (MAPE) for the cost equation you developed in requirement 1. (Do not round intermediate calculations, with the exception of MAPE for each month, which should be rounded to three decimal places. Input your final answer as a percentage rounded to 1 decimal place (i.e., .0540 = 5.40%).) Mean absolute percentage error (MAPE)