How would I plug this into excel to get the answer? Need specifics around exactly formual to use in excel.

Suppose you are considering a new venture that requires a (one time) upfront investment. There is a three year lag before sales start coming in. The table below lays out the timing of the relevant cash flows. The discount rate is 10% per year.

What is the present value of the venture's cash flows (including the upfront cash outlay)?

Initial Investment -$120,000

Cash Flows

Year 0 - 0

Year 1 - 0

Year 2 - 0

Year 3 - 70000

Year 4 - 70000

Year 5 - 70000