ular item has a demand of 1000 units per month. The cost of one order is and the carrying and storage charges are 15% of the average inventory per sume number of working days in a year is 300 . The shortage cost is Rs. 8 per year. Determine the following: he economic lot size he optimal shortage quantity he number of orders per day he total cost per year if the purchase cost of one unit is Rs.20 f the shortage is not allowed, then change of difference in the total inventory