As a project manager you're trying to decide if you should add a night$-$shift to the plant. If you do$,$ you expect to incur retooling costs, to allow for round the clock operations, that would amount to $$43455$ per month for the next $3$ months $($incurred at month end$).$ A full month after the final payment was made, you'd expect to net $($after costs and taxes$)$ an additional $$15973$ per month. However, you expect that monthly benefit to decline at a constant effective monthly rate of $0\mathrm{.}4\%$ as competitors and markets adjust to the new increased output of the plant. If your firm faces a cost of capital of $11\mathrm{.}7\%$ EAR, what would be the NPV of pursuing the night$-$shift project?