Exercise $17-3($Algo$)$ Computing and analyzing trend percents LO P$1$

$20212020201920182017$Sales$ $672,179$$ $439,333$$ $348,677$$ $250,847$$ $183,100$Cost of goods sold$338,640221,267177,389126,82491,550$Accounts receivable$32,39925,65723,81514,64912,506$

Compute trend percents for the above accounts, using $2017$ as the base year. For each of the three accounts, state whether the situation as revealed by the trend percents appears to be favorable or unfavorable.