A company is known to have 4 request periods in 1 year. In the first quarter year demand amounted to 750, the 2nd quarter was 900, the third quarter was 1500, and for the fourth quarter it was 900. If the company has an initial inventory of 100, the desired final inventory is 150 units, the cost of normal hours is 100 rupiah/unit, the overtime hour fee is 125 rupiah/unit, the cost of sub-contract hours is 150 rupiah/unit, and lastly the cost of inventory is known to be 20 rupiah per unit per period. Here is the table of normal hours, overtime hours and subcontracts.

period	Normal Hours	overtime hours	subcontract
1	700	146	500
2	800	146	500
3	900	146	500
4	500	146	500

Please specify: a. Total cost! b. How much is produced per quarter? c. Analyze Your Answers!