Develop a solution with PPB Lot-Sizing technique and calculate the total relevant costs for the gross requirements in the following table. Period 1 Gross requirements 20 The total cost is $ Develop a PPB solution (enter your responses as whole numbers). Period Gross requirements On-hand at beginning of period 40 On-hand at end of period Order receipt Order release 2 (enter your response as a whole number). 1 20 40 20 3 40 0 *Holding cost = $2.50/unit/week; setup cost = $150; lead time = 1 week; beginning inventory = 40. 2 4 5 6 7 40 70 30 20 20 0 20 3 40 20 0 20 0 8 9 10 10 80 4 5 6 7 8 9 40 70 30 10 0 0 0 0 0 0 0 0 0 0 0 40 70 30 0 10 40 70 30 0 10 80 D 0 10 11 12 40 10 11 80 0 0 80 0 0 0 0 40 12 40 0 0 40