Consider the following moving average model.

MA n$=2$

Period Demand Forcast Error ABS$($Error$)$

$119$

$221$

$3282088$

$42524\mathrm{.}50\mathrm{.}50\mathrm{.}5$

$53026\mathrm{.}53\mathrm{.}53\mathrm{.}5$

$63327\mathrm{.}55\mathrm{.}55\mathrm{.}5$

What is the forecast for period $10?$