Exponential smoothing where $=0\mathrm{.}55($assume the forecast for August was $415)$

One of your employees developed two models for forecasting sales and tried to fit the model to past sales data, as

shown below. You're not sure which method is better so you decide to calculate the Mean Absolute Percentage Error to

explain which forecasting method $($Method $1$ or Method $2)$ is "better." Show your work in calculating the MAPE and make

a conclusion as to which is a "better" method for predicting future sales.

$4$b$.$ Which forecasting method is better?