| Parameter | T1 | T2 | T3 | T4 |
| Number of animals | 6 | 6 | 6 | 6 |
| Total Purchase price of sheep (ETB) | 13,800.0 | 13,800.0 | 13,800.0 | 13,800.0 |
| Total basal diet intake (kg) | 334.8 | 342.2 | 342.2 | 343.9 |
| Total maize bran consumed (kg) |
| 148.1 |
|
|
| Total concentrate mix consumed (kg) |
|
| 148.6 |
|
| Total Groundnut haulms consumed (kg) |
|
|
| 147.7 |
| Cost of GH consumed (ETB) | 0.0 | 0.0 | 0.0 | 296.0 |
| Cost of maize bran consumed (ETB) | 0.0 | 592.3 | 0.0 | 0.0 |
| Cost of concentrate mix consumed (ETB) | 0.0 | 0.0 | 338.2 |
|
| Total cost of supplementary feed consumed (ETB) |
| 592.3 | 338.2 | 296.0 |
| Cost of basal diet (ETB) | 133.9 | 136.9 | 136.9 | 137.6 |
| Selling price of sheep (ETB) | 16,800.0 | 19,200.0 | 19,800.0 | 20,700.0 |
| Total variable cost | 133.9 | 729.2 | 475.1 | 433.6 |
| Total return | 3000.0 | 5400 | 6000.0 | 6900 |
| Change in total return (∆TR in ETB) |
| 1200 | 1800.0 | 2700.0 |
| Net return | 2866.1 | 4670 | 5524.9 | 6666.0 |
| Change in net return (∆NR in ETB) |
| 604 | 1458.9 | 2600.4 |
| Change in total variable cost (∆TVC in ETB) |
| 595.3 | 341.2 | 99.7 |
| Marginal rate of return% (∆NR/∆TVC) |
| 101.5 | 427.6 | 2608.2 |