(Need help with this problem & explanation)

Develop a lot-for-lot solution and calculate total relevant costs for the gross requirements in the following table'. la Period 123456789101112 Gross requirements 20 30 30 70 20 20 80 60 *Holding cost = $3.501unitn'week; setup cost = $200; lead time :1 week; beginning inventory =40. Develop a lot-for-lot solution (enter your responses as whole numbers). Period 123456789101112 Gross requirements 20 30 30 TO 20 20 80 60 On-hand at beginning of period 40 On-hand at end of period Order receipt Order release