Please show to solve on paper or excel

SkyWalker Net manufactures recreational trampolines. You are given the following monthly demand history for a popular family of their trampolines along with the two sets of forecasts from two analytics consulting teams: Team Yoda and Team Vader. Calculate the mean absolute percent error (MAPE) over Period 1-5 for Team Yoda's forecast. Rounding instructions - Enter your answer as a percentage rounded to the nearest tenth of a percent (e.g. 0.1679 should be entered as 16.8 ). - Carry all calculations to 3 decimal places if necessary. - Round your final answer to 1 decimal place