| Item | Existing Average Techniques | Improved Average Techniques | ||||
| Mean | Harmonic Mean | Geometric Mean | Mean | Harmonic Mean | Geometric Mean | |
| Xi | 0.5, 3.5, 0, 0.5, 0 | 0.5, 3.5, 0, 0.5, 0 | 0.5, 3.5, 0, 0.5, 0 | 0.5, 0, 0, 4, 0 | 0.5, 0, 0, 4, 0 | 0.5, 0, 0, 4, 0 |
| Z1 | 105,750 | 105,750 | 105,750 | 99,450 | 99,450 | 99,450 |
| Z2 | 71.5 | 71.5 | 71.5 | 78.5 | 78.5 | 78.5 |
| Z3 | 1300 | 1300 | 1300 | 1265 | 1265 | 1265 |
| Z4 | 8075 | 8075 | 8075 | 7725 | 7725 | 7725 |