Given the following cash inflow, what is the present value of this cash flow at 6%, 11%, 23% discount rates?

Year Cash Inflow 1 $3,500 2 $8,000 3 $0 4 $0 5 $0 6 $0 7 $0 8 $20,000

What is the present value of this cash flow at 6%, 11% and 23% discount rate? round to the nearest cent