CHRIS SHOULD ORDER 400 UNITS FROM VENDOR B
EXPLANATION
DEMAND = 800
ORDERING COST = 12
HOLDING COST = 5.25
EOQ = SQRT(2 * DEMAND * ORDERING COST / HOLDING COST) = SQRT(2 * 800 * 12 / 5.25) = 60
ANNUAL HOLDING COST = ADJUSTED EOQ / 2 * HOLDING COST PER UNIT
ANNUAL ORDERING COST = (ANNUAL DEMAND / ADJUSTED EOQ) * ORDERING COST
ANNUAL MATERIAL COST = ANNUAL DEMAND * OFFERED PRICE PER UNIT
TOTAL COST OF INVENTORY = ANNUAL(HOLDING + ORDERING + MATERIAL)
VENDOR A
OPTIMAL ORDER QUANTITY = 200
ASSOCIATED COST = 25493
NO. |
LOWER LIMIT |
UPPER LIMIT |
PER UNIT PRICE |
HOLDING COST |
EOQ |
ADJUSTED QUANTITY |
ANNUAL HOLDING COST |
ANNUAL ORDER COST |
ANNUAL MATERIAL COST |
TOTAL COST OF INVENTORY |
1 |
0 |
14 |
35 |
5.25 |
60 |
14 |
(14 / 2) * 5.25 = 36.75 |
800 / 14 * 12 = 685.71 |
800 * 35 = 28000 |
36.75 + 685.71 + 28000 = 28722 |
2 |
15 |
24 |
34.75 |
5.25 |
60 |
24 |
(24 / 2) * 5.25 = 63 |
800 / 24 * 12 = 400 |
800 * 34.75 = 27800 |
63 + 400 + 27800 = 28263 |
3 |
25 |
99 |
33.55 |
5.25 |
60 |
60 |
(60 / 2) * 5.25 = 157.5 |
800 / 60 * 12 = 160 |
800 * 33.55 = 26840. |
157.5 + 160 + 26840 = 27158 |
4 |
100 |
199 |
32.35 |
5.25 |
60 |
100 |
(100 / 2) * 5.25 = 262.5 |
800 / 100 * 12 = 96 |
800 * 32.35 = 25880 |
262.5 + 96 + 25880 = 26239 |
5 |
200 |
399 |
31.15 |
5.25 |
60 |
200 |
(200 / 2) * 5.25 = 525 |
800 / 200 * 12 = 48 |
800 * 31.15 = 24920 |
525 + 48 + 24920 = 25493 |
6 |
400 |
& MORE |
30.75 |
5.25 |
60 |
400 |
(400 / 2) * 5.25 = 1050 |
800 / 400 * 12 = 24 |
800 * 30.75 = 24600 |
1050 + 24 + 24600 = 25674 |
VENDOR B
OPTIMAL ORDER QUANTITY = 400
ASSOCIATED COST = 25474
NO. |
LOWER LIMIT |
UPPER LIMIT |
PER UNIT PRICE |
HOLDING COST |
EOQ |
ADJUSTED QUANTITY |
ANNUAL HOLDING COST |
ANNUAL ORDER COST |
ANNUAL MATERIAL COST |
TOTAL COST OF INVENTORY |
1 |
0 |
24 |
34.75 |
5.25 |
60 |
24 |
(24 / 2) * 5.25 = 63 |
800 / 24 * 12 = 400 |
800 * 34.75 = 27800 |
63 + 400 + 27800 = 28263 |
2 |
25 |
99 |
34 |
5.25 |
60 |
60 |
(60 / 2) * 5.25 = 157.5 |
800 / 60 * 12 = 160 |
800 * 34 = 27200 |
157.5 + 160 + 27200 = 27518 |
3 |
100 |
199 |
32.8 |
5.25 |
60 |
100 |
(100 / 2) * 5.25 = 262.5 |
800 / 100 * 12 = 96 |
800 * 32.8 = 26240. |
262.5 + 96 + 26240 = 26599 |
4 |
200 |
399 |
31.6 |
5.25 |
60 |
200 |
(200 / 2) * 5.25 = 525 |
800 / 200 * 12 = 48 |
800 * 31.6 = 25280 |
525 + 48 + 25280 = 25853 |
5 |
400 |
& MORE |
30.5 |
5.25 |
60 |
400 |
(400 / 2) * 5.25 = 1050 |
800 / 400 * 12 = 24 |
800 * 30.5 = 24400 |
1050 + 24 + 24400 = 25474 |
VENDOR C
OPTIMAL ORDER QUANTITY = 300
ASSOCIATED COST = 25700
NO. |
LOWER LIMIT |
UPPER LIMIT |
PER UNIT PRICE |
HOLDING COST |
EOQ |
ADJUSTED QUANTITY |
ANNUAL HOLDING COST |
ANNUAL ORDER COST |
ANNUAL MATERIAL COST |
TOTAL COST OF INVENTORY |
1 |
0 |
49 |
34.5 |
5.25 |
60 |
49 |
(49 / 2) * 5.25 = 128.63 |
800 / 49 * 12 = 195.92 |
800 * 34.5 = 27600 |
128.63 + 195.92 + 27600 = 27925 |
2 |
50 |
149 |
33.75 |
5.25 |
60 |
60 |
(60 / 2) * 5.25 = 157.5 |
800 / 60 * 12 = 160 |
800 * 33.75 = 27000 |
157.5 + 160 + 27000 = 27318 |
3 |
150 |
299 |
32.5 |
5.25 |
60 |
150 |
(150 / 2) * 5.25 = 393.75 |
800 / 150 * 12 = 64 |
800 * 32.5 = 26000 |
393.75 + 64 + 26000 = 26458 |
4 |
300 |
& MORE |
31.1 |
5.25 |
60 |
300 |
(300 / 2) * 5.25 = 787.5 |
800 / 300 * 12 = 32 |
800 * 31.1 = 24880 |
787.5 + 32 + 24880 = 25700 |
VENDOR D
OPTIMAL ORDER QUANTITY = 300
ASSOCIATED COST = 25620
NO. |
LOWER LIMIT |
UPPER LIMIT |
PER UNIT PRICE |
HOLDING COST |
EOQ |
ADJUSTED QUANTITY |
ANNUAL HOLDING COST |
ANNUAL ORDER COST |
ANNUAL MATERIAL COST |
TOTAL COST OF INVENTORY |
1 |
0 |
149 |
34.25 |
5.25 |
60 |
60 |
(60 / 2) * 5.25 = 157.5 |
800 / 60 * 12 = 160 |
800 * 34.25 = 27400 |
157.5 + 160 + 27400 = 27718 |
2 |
150 |
299 |
33 |
5.25 |
60 |
150 |
(150 / 2) * 5.25 = 393.75 |
800 / 150 * 12 = 64 |
800 * 33 = 26400 |
393.75 + 64 + 26400 = 26858 |
3 |
300 |
& MORE |
31 |
5.25 |
60 |
300 |
(300 / 2) * 5.25 = 787.5 |
800 / 300 * 12 = 32 |
800 * 31 = 24800 |
787.5 + 32 + 24800 = 25620 |
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Chris Sandvig Irrigation, Inc., has summarized the price list from four potential suppliers of an underground...
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