An investment has the following cash inflows: $2,100 at the end of the first year, $1,800 at the end of the second year, and $1,400 at the end of the third year. What is the discounted payback period if the discount rate is 0 percent and the initial cash outflow is $4,236? (Round answer to 2 decimal places, e.g. 25.25.) Discounted payback period years