Initial monthly payout KRW 1,000,000; 20 years; annual change 0%
Scenario total KRW 240,000,000; first year KRW 12,000,000; final-year monthly KRW 1,000,000A constant KRW 1 million for 12 months over 20 years totals KRW 240 million, before any unmodelled contract conditions.