Please help with number 3.

Given the following: Calculate the breakeven/payback month and year. Period 0 2017 2018 2019 2020 2021 Cash Flow $ (2,000,000) $ 500,000 $ 550,000 $ 600,000 $ 650,000 $ 700,000 Cummulative $ (2,000,000) $ (1,500,000 $ (950,000) $ (350,000) $ 300,000 $ 1,000,000 1. Calculate the % of the amount to be paid off/ the cash flow in the year it will be paid off. 54% *Changed to be a positive for later calculations... I think this would be what he wants 2. Calculate the numeric month in the breakeven year 6.46 3. What month and year will it be paid off? Month Year