Evaluate the NPV for a green building with the following cost and savings data. Use a discount rate equal to the current market rate of return $($mid$-$March $2020)-7\%$ annually. Show gross and net PV calculations $($ROI not necessary$)$: a$.$ Incremental costs for achieving LEED credits: $$50,000$ b$.$ Year $1$ savings: $$12,550$ c$.$ Year $2$ savings: $$12,100$ d$.$ Year $3$ savings: $$11,900$ e$.$ Year $4$ savings: $$11,750$ f$.$ Year $5$ savings: $$11,550$