Forecasted sales for years $2$ through $6$ using exponential smoothing with alpha $=0\mathrm{.}60$ and a starting forecast of $410\mathrm{.}00$ are $($round your responses to two decimal $$places$)$:

Year

$1$

$2$

$3$

$4$

$5$

$6$

Forecasted Sales

$410\mathrm{.}00$

$$

$434$

$$

$479\mathrm{.}6$

$$

$502\mathrm{.}64$

$$

$540\mathrm{.}65$

$$

$564\mathrm{.}26$

Part $4$

The MAD for a forecast developed using exponential smoothing with alpha $=0\mathrm{.}60$ is

$$

enter your response here sales $($round your response to two decimal$$ places