Please consider the demand and cost information shown below. Note that the order quantity shown (2,000 units per order) is not optimal.
• What is the total logistics cost in this current scenario?
• What would be the economic order quantity?
• By how much (in % terms) could total logistics costs be reduced if the firm used the EOQ rather than an order quantity of 2,000 units?
• Finally, the firm is considering one of two options: Option A would allow the firm to reduce order placement costs to $850 per order (all else equal). Option B, in turn, would allow the firm to reduce physical warehousing charges, thus bringing inventory holding costs down to $41 per unit per year (all else equal). Given the choice between Option A and Option B, which one would you recommend? By how much (in % terms) could total logistics costs be reduced (relative to the initial optimal scenario) if the preferred option was implemented?
Current Annual demand, D = 28,540 units/year
Order placement costs, K = $1,230 per order
Holding cost, h = $68.00 per unit per year
Order quantity, Q = 2,000units per order
Economic order quantity = [ 2 x annual demand x ordering cost / cost of holding one unit per year]1/2
= [ 2 x 28540 x1230 /68]1/2 = 1016
cost with EO quantity = cost of holding + cost of ordering
= (1016/2) x 68 + ( 1230x (28540 /1016)
=34544+ 34551= 69095
Cost with 2000 quantity
= (2000/2 ) x 68 + 1230 x 28540 / 2000 = 85552
If the order size reduces to 1016, the cost will decrease by ( 85552-69095) = 16457
Cost with option A ( reduction or ordering cost)
EO quantity = [ 2 x 28540 x850 / 68]1/2 = 845
cost = (845 /2 ) x68 + 850 x ( 28540 / 845) = 57439
Cost with option 2
=EO quantity = [ 2 x 28540 x1230 / 41]1/2 = 1308
cost = 1308/2 x41 +1230x ( 28540 / 1308) = 26814+26838 = 53652
Option b is better as it has lower cost.
percentage reduction of the original cost =( 69095-53652) / 69095 = 0.2235
= 22.35%
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