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%