| Loan year | Principal amount (dollars) | Semiannual percentage rate (percent) | Annual interest earned (dollars) | Balance due (dollars) |
| 1 (January) | $100 | 2.5% | $2.50 | $102.50 |
| 1 (July) | 102.50 | 2.5 | 2.56 | 105.06 |
| 2 (January) | 105.06 | 2.5 | 2.63 | 107.69 |
| 2 (July) | 107.69 | 2.5 | 2.69 | 110.38 |
| 3 (January) | 110.38 | 2.5 | 2.76 | 113.14 |
| 3 (July) | 113.14 | 2.5 | 2.83 | 115.97 |