r1

n1

r2

n2

r3

n3

r4

n4

Profit (£)

Offer

1

4

2

7

2

2

4

6

7.9977

15%

2

4

2

7

2

2

4

6

18.2789

15%

3

4

2

7

2

2

4

6

30.8434

15%

4

4

2

7

2

2

4

6

45.6914

15%