Table 5 Results associated with changes in the input elements
|  | Loading plate | Transport belt | Skate +  |
|---|---|---|---|
Scenario A (Increase of 5% of volumes every year) | |||
Return on investment after 10Â years | 5% | 13% | No positive ROI |
Estimated break-even period | 3Â years and 2Â months | 2Â years and 8Â months | No break-even point reached |
Scenario B (Increase of 15% of labour cost) | |||
Return on investment after 10Â years | 13% | 22% | No positive ROI |
Estimated break-even period | 1Â year and 3Â months | 1Â years and 9Â months | No positive ROI |
Scenario C (increase the technology risk from 0 to 15%) | |||
Return on investment after 10Â years | 3% | 10% | No positive ROI |
Estimated break-even period | 4Â years and 2Â months | 3Â years and 4Â months | No break-even point reached |
Scenario D (Using a 100% loading degree of trucks) | |||
Return on investment after 10Â years | 4% | 41% | 16% |
Estimated break-even period | 3Â years and 8Â months | 5Â months | 2Â years and 4Â months |