| Sources | Destinations | Supply | |||
| D1 | D2 | D3 | D4 | ||
| S1 | 50 | 60 | 100 | 50 | 20 |
| S2 | 80 | 40 | 70 | 50 | 38 |
| S3 | 90 | 70 | 30 | 50 | 16 |
| Demand | 10 | 18 | 22 | 24 |
|