7. Chambers Inc. is considering using the PPB lot-sizing approach, but first it wants to compare the approach to its current lot-sizing method, EOQ.

Chambers has selected a sample component for the comparison, and its requirements are given below. Ordering cost is $27 per order, and carrying cost is $0.25 per unit per period. (Use average inventory.) Using the sample component data, construct schedules using PBB and EOQ.

Also, compare the costs of these schedules.

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Period 1 2 3 4 5 67 8 Requirements 51 14 59 93 44 12 67 60