Bubba's Steakhouse has budgeted the following costs for a month in which 1,600 steak dinners will be produced and sold: Materials, $4,080; hourly labor (variable), $5,200; rent (fixed), $1,680; depreciation, $710; and other fixed costs, $590. Each steak dinner sells for $12.80 each. How much would Shulas profit increase if 10 more dinners were sold?

the answer should equal to: 70

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