In: Operations Management
SHOW STEPS, FORMULAS, AND EXPLANATIONS
a. The following table contains figures on the monthly volume and unit costs for a random sample of the 16 items from a list of 2,000 inventory items at a health care facility. Develop an A-B-C classification for these items.
Item |
Unit Cost |
Usage |
Item |
Unit Cost |
Usage |
K34 |
$10 |
200 |
F99 |
$20 |
60 |
K35 |
25 |
600 |
D45 |
10 |
550 |
K36 |
36 |
150 |
D48 |
12 |
90 |
M10 |
16 |
25 |
D52 |
15 |
110 |
M20 |
20 |
80 |
D57 |
40 |
120 |
Z45 |
80 |
200 |
N08 |
30 |
40 |
F14 |
20 |
300 |
P05 |
16 |
500 |
F95 |
30 |
800 |
P09 |
10 |
30 |
b. Given the monthly usages in the following table, classify the items in A, B, and C categories according to dollar usage.
Item |
Usage |
Unit Cost |
4021 |
90 |
$1,400 |
9402 |
300 |
12 |
4066 |
30 |
700 |
6500 |
150 |
20 |
9280 |
10 |
1,020 |
4050 |
80 |
140 |
6850 |
2,000 |
10 |
3010 |
400 |
20 |
4400 |
5,000 |
5 |
c. Determine the percentage of items in each category and the annual dollar value for each category for part b.
a) ABC analysis
Step 1: Calculate Dollar value of each item by multiplying the Unit cost with Usage.
Step 2: Sort the items in descending order of Dollar value.
Step 3: Compute for each item the % of total dollar value of all items.
Step 4: Calculate running sum of % (Cumulative %)
Step 5: Classifiy the items upto cumulative % of 80 as A category, Next 15-17% as B category and the last 3-5% as C catgory
Formulas:
E2 =C2*D2
F2 =E2/$E$18
G3 =F3+G2
copy down to row 17
b) Repeat the same step-wise method for this part