| Unit price (KRW) | Economic effectiveness (KRW 1000) | Benefit to cost ratio | Remark |
|---|---|---|---|
| 200 | 230,494 | 4.11 | |
| 400 | 156,324 | 2.05 | |
| 485.37 | 124,664 | 1.69 | |
| 600 | 82,154 | 1.37 | |
| 800 | 7984 | 1.03 | |
| 821.53 | 0 | 1.00 | |
| 1000 | − 66,186 | 0.82 |