r1 | n1 | r2 | n2 | r3 | n3 | r4 | n4 | Profit (£) | Offer |
1 | 5 | 1 | 5 | 5 | 5 | 4 | 4 | 5.5096 | 20% |
2 | 5 | 1 | 5 | 5 | 5 | 4 | 4 | 12.5288 | 20% |
3 | 5 | 1 | 5 | 5 | 5 | 4 | 4 | 21.0576 | 20% |
4 | 5 | 1 | 5 | 5 | 5 | 4 | 4 | 31.0960 | 20% |
5 | 5 | 1 | 5 | 5 | 5 | 4 | 4 | 42.6440 | 20% |