A project has the following cash flows:

Year Cash Flow

$0$$ $16,800$

$17,500$

$28,800$

$37,300$

a$.$

What is the NPV at a discount rate of zero percent? $($Do not round intermediate calculations and round your answer to the nearest whole number, e$.$g$.,32.)$

b$.$ What is the NPV at a discount rate of $11$ percent? $($Do not round intermediate calculations and round your answer to $2$ decimal places, e$.$g$.,32\mathrm{.}16.)$

c$.$ What is the NPV at a discount rate of $21$ percent? $($A negative answer should be indicated by a minus sign. Do not round intermediate calculations and round your answer to $2$ decimal places, e$.$g$.,32\mathrm{.}16.)$

d$.$ What is the NPV at a discount rate of $29$ percent? $($A negative answer should be indicated by a minus sign. Do not round intermediate calculations and round your answer to $2$ decimal places, e$.$g$.,32\mathrm{.}16.)$