n	Project A	Project B
0	-$7,000	-$5,000
1	-$2,500	-$2,000
2	-$2,000	-$2,000
3	-$1,500	-$2,000
4	-$1,500	-$2,000
5	-$1,500	-$2,000
6	-$1,500	-$2,000
7	-	-$2,000
8	-	-

Suppose projects A and B are mutually exclusive. The required service period is 8 years and comparable equipment will be leased for $3,000 per year payable at the end of each year for the remaining years of the required service period. Which project is a better choice at 15%? Use PW(15%) criterion and show your equation with numbers plugged into factors and your numerical result for each option.