I need $4$ and $5.$

Use the following assumptions to calculate the NPV of the gross profit earned on a one$-$time sale.

Assume that the sale was just placed and the firm will be required to produce the good sold.

Revenue $=$$$50,000$

$CGS=$$$40,000$

Discount rate $=7\mathrm{.}30$ percent

Operating cycle $=50$ days

DPO$=10$ days

Building on problem $4,$ assume that the operating cycle drops to $30$ days. Recalculate the NPV and

also calculate $\frac{?}{{?}_{\frac{?}{?}}NPV}.$ Interpret your estimate for $\frac{?}{{?}_{\frac{?}{?}}NPV}.$