Exercise $6-15$Liquid assets andaccounts receivableA$1$Barga Co$.\text{'}$s net sales for Year $1$ and Year $2$ are S$730,000$ and S$1,095,000,$ respectively. Its year$-$end balances of accounts receivable follow: Year $1,$ S$65,000$; and Year $2,$ $$123,000.$a$.$ Compute its days' sales uncollected at the end of each year.b$.$ Did days sales uncollected improve or worsen in Year $2$ versus Year $1?$