8/14/2019 MPR -Group assignment1.xlsx

1/10

Lead time 3 weeks

Set up cost 0.01/unit/week

Beginning inventory 90

Carrying cost 10

Period 1 2 3 4 5 6

Gross requirement 50 10 20 80 30 70Beginning inventory 90 40 30 10 325 295

Scheduled reciepts

On hand from prior period

Net requirement 0 0 0 70 0 0

Time phased net required 70 125

Planned order release 395 395

Planned order delivery 395

Ending Inventory 40 30 10 325 295 225

ESTIMATED ANNUAl DEMAND Total demand over 10 weeks*52/10

4056 units/year

h 0.01*52 0.52

EOQ 394.9684

Costs

ordering 0 0 0 10 0 0

carrying cost 0.4 0.3 0.1 3.25 2.95 2.25

total cost 33.95

8/14/2019 MPR -Group assignment1.xlsx

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7 8 9 10

60 40 250 170225 165 125 145

0 0 125 0

395

165 125 145 35

0 0 10 0

1.65 1.25 1.45 0.35

8/14/2019 MPR -Group assignment1.xlsx

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Lead time 3 weeks

Carrying cost 0.01/unit/week

Beginning inventory 90

Set up cost 10

Period 1 2 3 4 5 6 7

Gross requirement 50 10 20 80 30 70 60beginning inventory 90 40 30 10 0 0 0

Scheduled reciepts

On hand from prior period

Net requirement 0 0 0 70 30 70 60

Time phased net required 70 30 70 60 40 250 170

Planned order release 70 30 70 60 40 250 170

Planned order delivery 70 30 70 60

Ending Inventory 40 30 10 0 0 0 0

Ordering cost 0 0 0 10 10 10 10

holding Cost 0.4 0.3 0.1 0 0 0 0

total cost 70.8

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8 9 10

40 250 1700 0 0

40 250 170

40 250 170

0 0 0

10 10 10

0 0 0

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Period 1 2 3 4 5

Gross requirement 50 10 20 80 30

beginning inventory 90 40 30 10 210

Scheduled reciepts

On hand from prior period

Net requirement 70Time phased net required 70

Planned order release 280

Planned order delivery 280

Ending Inventory 40 30 10 210 180

J 1 2 3 4

rj 80 30 70 60

Units in the inventory at end of Week

Order for weeks Q 4 5 6 7

1 week,week 4 80

2 weeks,week 4 to 5 110 30

3 weeks,week 4 to 6 180 100 70

4 weeks,week 4 to 7 240 160 130 60

5 weeks,week 4 to 8 280 200 170 100 40

6 weeks,week 4 to 9 530 450 420 350 290

7 weeks,week 4 to 10 700 620 590 520 460

1 week, week9 250

2week, week 9 to 10 420

Odering cost 0 0 0 10 0

Holding cost 0.4 0.3 0.1 2.1 1.8

Total cost 28.3

8/14/2019 MPR -Group assignment1.xlsx

6/10

6 7 8 9 10

70 60 40 250 170

180 110 50 10 180

240240

420

420

110 50 10 180 10

5 6 7

40 250 170 Per

H Ord period

8 9 10 Cost Cost cost

0 10 10

0.3 10 5.15

1.7 10 3.9

3.5 10 3.375

5.1 10 3.02

250 17.6 10 4.6

420 170 10

0 0 10 10

170 1.7 10 5.85

0 0 0 10 0

1.1 0.5 0.1 1.8 0.1

8/14/2019 MPR -Group assignment1.xlsx

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Period 1 2 3 4 5

Gross requirement 50 10 20 80 30

beginning inventory 90 40 30 10 460

Scheduled reciepts

On hand from prior periodNet requirement 70

Time phased net required 70

Planned order release 530

Planned order delivery 530

Ending Inventory 40 30 10 460 430

J 1 2 3 4

rj 80 30 70 60

Units in the inventory at end of Week

Order for weeks Q 4 5 6 7

1 week,week 4 80

2 weeks,week 4 to 5 110 30

3 weeks,week 4 to 6 180 100 70

4 weeks,week 4 to 7 240 160 130 60

5 weeks,week 4 to 8 280 200 170 100 40

6 weeks,week 4 to 9 530 450 420 350 290

7 weeks,week 4 to 10 700 620 590 520 460

1 week, week10 170

Odering cost 0 0 0 10 0

Holding cost 0.4 0.3 0.1 4.6 4.3

Total cost 39.1

8/14/2019 MPR -Group assignment1.xlsx

8/10

6 7 8 9 10

70 60 40 250 170

430 360 300 260 10

160

160

170

170

360 300 260 10 10

5 6 7

40 250 170 Per

H Ord Unit

8 9 10 Cost Cost cost

0 10 0.125

0.3 10 0.093636364

1.7 10 0.065

3.5 10 0.05625

5.1 10 0.053928571

250 17.6 10 0.052075472

420 170 27.8 10 0.054

0 0 10 10

0 0 0 0 10

3.6 3 2.6 0.1 0.1

8/14/2019 MPR -Group assignment1.xlsx

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Period 1 2 3 4 5

Gross requirement 50 10 20 80 30

beginning inventory 90 40 30 10 460

Scheduled reciepts

On hand from prior period

Net requirement 70Time phased net required 70

Planned order release 530

Planned order delivery 530

Ending Inventory 40 30 10 460 430

J 1 2 3 4

rj 80 30 70 60Units in the inventory at end of Week

Order for weeks Q 4 5 6 7

1 week,week 4 80

2 weeks,week 4 to 5 110 30

3 weeks,week 4 to 6 180 100 70

4 weeks,week 4 to 7 240 160 130 60

5 weeks,week 4 to 8 280 200 170 100 40

6 weeks,week 4 to 9 530 450 420 350 290

7 weeks,week 4 to 10 700 620 590 520 460

1 week, week9 250

2week, week 9 to 10 420

Odering cost 0 0 0 10 0

Holding cost 0.4 0.3 0.1 2.1 1.8

Total cost 28.3

8/14/2019 MPR -Group assignment1.xlsx

10/10

6 7 8 9 10

70 60 40 250 170

430 360 300 260 180

240240

420

420

360 300 260 180 10

5 6 7

40 250 170 PerH Ord period

8 9 10 Cost Cost cost

0 10 10

0.3 10 9.7

1.7 10 8.3

3.5 10 6.5

5.1 10 4.9

250 17.6 10 7.6

420 170 10

0 0 10 10

170 1.7 10 8.3

0 0 0 10 0

1.1 0.5 0.1 1.8 0.1