Material

Material 1 ($/part)

Material 2 ($/part)

Supplier

Supplier 1

Supplier 2

Supplier 3

Supplier 1

Supplier 2

Supplier 3

Period

P 1

3

6

6

8

7

3

P 2

4

4

7

5

3

5

P 3

1

6

8

3

4

4

P 4

2

8

5

4

3

7

P 5

3

4

5

2

2

4