Table 5 Monthly payment which satisfies Prob.( N L ˜ > 0 ) = 50% (Unit: KRW)

Age pmt: ① Fair price: ② Ratio: ②/① Expected interest rate(i)
60 311,090 357,359 1.148 2.91%
70 388,290 435,525 1.121 2.82%
80 518,080 558,134 1.077 2.87%