r₁

n₁

r₂

n₂

r₃

n₃

Profit (£)

Offer

1

1

1

5

3

6

19.6875

5%

1

1

2

5

3

6

20.6719

10%

1

1

3

5

3

6

29.5469

10%

1

1

4

5

3

6

39.3750

10%

1

1

5

5

3

6

49.2188

10%