Exercise $13-3($Algo$)$ Computing and analyzing trend percents LO P$1$

$20212020201920182017$

Sales $ $558,810$ $ $367,638$ $ $294,110$ $ $214,679$ $ $156,700$

Cost of goods sold $287,493189,245153,446110,88679,917$

Accounts receivable $26,99121,43320,17612,55910,687$

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.