please explain how values dor each column is calculated

set up a discounted cash flow table to calculate the time needed to pay back the initial $50,000 investment. Discount New Cumulative FactorInflowsCash Flow Year Cash Flovw (50,000)1.00 (50,000) (50,000) 30,000 30,000 40,000 25,000 15,0000.507,50047,050 0 0.90 27,000 0.8024,000 0.7028,000 Q.6015,000 2 4 In what year will we reach a breakeven point