Using the data provided, an alpha of $0\mathrm{.}1$ and where F$1$ equals $90,$what is the exponentially smoothed forecast error for October $7$th$?$

Group of answer choices

$-12\mathrm{.}1$

$77\mathrm{.}8$

$22\mathrm{.}9$

$73\mathrm{.}0$