Revenue and cost information for a future period including all opportunity costs is presented in Exhibit 6 for WR International, a newly formed corporation that engages in the manufacturing of low-cost, prefabricated dwelling units for urban housing markets in emerging economies. (Note that quantity increments are in blocks of 10 for a 250 change in price.) The firm has few competitors in a market setting of imperfect competition. 

1. How many units must WR International sell to initially break even? 

2. Where is the region of profitability? 

3. At what point will the firm maximize profit? At what points are there economic losses?

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Exhibit 6: Revenue and Cost Information for WR International Quantity (Q) 0 10 20 30 40 50 60 70 80 90 100 Price (P) 10,000 9,750 9,500 9,250 9,000 8,750 8,500 8,250 8,000 7,750 7,500 Total Revenue Total Cost (TR) (TC) 0 97,500 190,000 277,500 360,000 437,500 510,000 577,500 640,000 697,500 750,000 100,000 170,000 240,000 300,000 360,000 420,000 480,000 550,000 640,000 710,000 800,000 Profit -100,000 -72,500 -50,000 -22,500 0 17,500 30,000 27,500 0 -12,500 -50,000