Fitzgerald Corporation currently has an all$-$cash credit policy. It is considering making a change in the credit policy by going to terms of net $30$ days. The required return is $\mathrm{.}58$ percent per month.

Current Policy New Policy

Price per unit $ $155$ $ $158$

Cost per unit $ $125$ $ $128$

Unit sales per month $1,2001,230$

Calculate the NPV of the decision to change credit policies.