| Parameters | Economic surplus | ∆% | NPV | ∆% | IRR (%) | ∆% |
| Initial scenario | 76,836,954 |
| 76,740,608 |
| 190.54 |
|
| (Reference = 75%) | ||||||
| 25% | 22,949,812 | −0.70 | 22,853,464 | −70.22 | 134.94 | −29.18 |