A new computer system will require an initial outlay of $$20,500,$

but it will increase the firm$$s cash flows by $$4,100$ a year for

each of the next $7$ years. 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.$)$