From the following hypothetical data for Riffa Co$.$ in $2018$ and $2019$ to project revenues, cost of goods sold, and inventory for Year $+1.$Assume that Riffa's Year $+1$ revenue growth rate, gross profit margin growth rate, and inventory turnover will be identical to $2019.$ Project the average inventory balance in Year $+1$ and use it to compute the implied ending inventory balance.$$Required: