Table 5. Example of pension amount calculation (assuming housing price: KRW 300 million, loan maturity: 30 years, housing price change rate: 2%) (unit: KRW)

Mortgage subscriber age 30 years old
Initial housing price 300 million
Loan amount (LTV) 90 mil. (30%) 150 mil. (50%) 210 mil. (70%)
Loan maturity 30 years
Loan interest rate 4.5%
Monthly repayment (CPM) 456,017 760,028 1,064,039
Pension contribution (10% repayment) 45,602 76,003 106,404
Investment return 4.5%
Initial pension age 65 years old
Pension fund at age 65 from mortgage loan 43,348,791 72,247,985 101,147,179
Monthly pension amount (a) 246,405 410,676 574,946
Housing price change rate 2.0%
Housing price at age 65 603,773,899
Monthly housing pension amount (A) 1,540,920
Total pension amount (a+A) 1,787,325 1,951,596 2,115,866
Ratio to housing pension (a/A) 0.16 0.27 0.37
LTV, loan to value; CPM, constant-payment mortgage.