Nominal amount owing today (10% per month compounded from Jan 1947 → Dec 2025, 947 months):
7,903,925,702,088,989,903,232,112,280,855,212,195,840 LKR
(≈ 7.903926 × 10³⁹ LKR)
Illustrative inflation-adjusted amount (dividing the nominal number by the illustrative CPI factor 2.075 used earlier)...