$2021\mathrm{,2}020\mathrm{,2}01\mathrm{9,}2018\mathrm{,2}017$

Sales $ $497,289$ $ $327,164$ $ $267,073$ $ $197,102$ $ $141,800$

Cost of goods sold $251,145165,182137,03799,65170,900$

Accounts receivable $23,96919,17218,21411,5119,699$

Compute trend percents for the above accounts, using $2017$ as the base year.