3 years and 2 months (ignoring leap years, assuming a 30 day month) = 3*365 + 2*30 = 1095 + 60 = 1155
87 1/2% = 0.875
0.875 * 1155 = 1010.625 = 730 + 280.625 = 730 + 270 + 10.625
Answer: about 2 years 9 months 10 days
.
86 1/2% = 0.865
0.865 * 1155 = 999.075 = 730 + 269.075 = 730 + 240 + 29.075
Answer: about 2 years 8 months 29 days