A r retail store records customer demand during each sale period. Use the following data to develop three$-$period moving average forecasting model and single exponential smoothing forecast model with $\backslash$alpha $=0\mathrm{.}5.$

Period Actual $3-$Mo$.$ MA Exp. Smth

t Demand Forecast Forecast

$186----86$

$293----$

$388----$

$489$

$592$

$694$

What is the MAD for the Exponential Smoothing method?