Consuelo Chun Inc. is a disk drive manufacturer in need of an aggregate plan for July through December The company has gathered following data

Costs

Holding cost $$8/$disk$/$month

subcontracting $$80/$disk

Regular labor time $$12/$hour

Overtime labor $$18/$hour for hours about $8/$hours$/$worker$/$day

Hiring cost $$40/$worker

Layoff cost $$80/$worker

demand

July $400$

August $500$

September $550$

October $700$

November $800$

december $700$

Note$-$No cost$-$incurred for unmet demand but unmet demand $($backorder$)$ must be handled in the following period it half or more worker is needed, round up

Other data

Current workforce $8$ people

Labor hour$/$disk $4$ hours

Workdays$/$month $20$ days

beginning inventory $150$ disks

No $/$ requirement for ending inventor $0$ disks

$($ No holiday cost for June$)$

What will be costing of two following strategies

$1.$ Vary work force so that production meets demand $8$ was workers on board in June

$2.$ Vary overtime only and use constant workforce of eight.