A company had net sales of $$21,500$ and ending accounts receivable of $$2,700$ for the current period. Its days' sales uncollected equals:

$58\mathrm{.}9$ days.

$8\mathrm{.}0$ days.

$45\mathrm{.}2$ days.

$7\mathrm{.}4$ days.

$45\mathrm{.}8$ days.