Answer: 6.17 years
Explanation:
Payback period = Period before debt is paid back + Amount left to to be paid back / Cashflow in year of payback.
Year Cash Flows Amount left to be paid back
0 (1,540,000) (1,540,000)
1 315,000 (1,225,000)
2 265,000 (960,000)
3 230,000 (730,000)
4 230,000 (500,000)
5 230,000 (270,000)
6 230,000 (40,000)
7 230,000 190,000
Year before payback = 6
Payback amount = 6 + (40,000 / 230,000)
= 6.17 years