For the data in the following table, compute the adjusted exponential smoothing forecast of the retail gasoline price using $\backslash$alpha $=0\mathrm{.}5$

and $\backslash$beta $=0\mathrm{.}1$

$.$ Assume that the forecast component for the first period is the actual time series data and the initial trend is zero. Determine the MAPD and express it as a percentage. Round your answer to two decimal places.

Month$-$Year Gas Price

Nov$-19$ $$2\mathrm{.}693$

Dec$-19$ $$2\mathrm{.}645$

Jan$-20$ $$2\mathrm{.}636$

Feb$-20$ $$2\mathrm{.}533$

Mar$-20$ $$2\mathrm{.}329$

Apr$-20$ $$1\mathrm{.}938$

May$-20$ $$1\mathrm{.}961$

Jun$-20$ $$2\mathrm{.}170$

Jul$-20$ $$2\mathrm{.}272$

Aug$-20$ $$2\mathrm{.}272$