Problem $8-12$ NPV$/$IRR $($LO$1)$A new computer system will require an initial outlay of $$14,150,$

but it will increase the firm$$s cash flows by $$3,100$ a year for

each of the next $7$ years.$$a$.$Calculate the NPV and decide if the

system is worth installing if the required rate of return

is$10\%.($Negative amount should be indicated by a

minus sign. Do not round intermediate calculations. Round your

answers to $2$ decimal places.$)$b$.$Calculate the NPV and decide if the

system is worth installing if the required rate of return

is$15\%.($Negative amount should be indicated by a

minus sign. Do not round intermediate calculations. Round your

answers to $2$ decimal places.$)$