| Recapture rate (%) | Economic effectiveness (KRW 1000) | Benefit to cost ratio | Remarks |
|---|---|---|---|
| 10 | − 120,495 | 0.33 | |
| 20 | − 60,991 | 0.66 | |
| 30 | − 1486 | 0.99 | |
| 30.25 | 1 | 1.00 | |
| 40 | 58,018 | 1.32 | |
| 50 | 117,523 | 1.65 | |
| 51.2 | 124,663 | 1.69 | |
| 60 | 177,027 | 1.98 | |
| 70 | 236,532 | 2.31 |