| INPUTS | ||||
| Labour a | Basic period (T1) - 2014 | Current period (T2) - 2015 | ||
| I1 | 3000 Hrs | I2 | 3000 Hrs | |
| C1 | N160 per Hour | C2 | N180 per Hour | |
| Labour b | I1 | 2800 Hrs | I2 | 3000 Hrs |
| C1 | N150 per Hour | C2 | N165 per Hour | |