Can you please help me with this question? I am missing something so obvious and stupid and I cannot think any more lol. Sam's Chop has budgeted the following costs for a month in which 1,500 steak dinners will be produced and sold: Materials, $3,750; labor (variable), $3,000; rent(fixed),$2,400; straight-line depreciation, $600; and other costs that don't change when the number of dinner sold changes, $1,800. Sam sells the steak dinners for $10.00 each. How much would Sam's profit increase if 10 more dinners were sold? they said the answer is $55 ??