What is the Payback period for product A and B?

What is the Payback period for product A and B?

Payback Period Sales revenues Variable expenses Fixed out-of-pocket operating costs Annual net cash inflows Product A Product B S 250,000 350,000 S (120,000) (170,000) $ (70,000) $ (50,000) 60,000 S 130,000 Investment required Annual net cash inflow (above Payback period (years) S 170,000 380,000 S60,000 130,000