For a recent year, Wicker Company-owned restaurants had the following sales and expenses (in millions):

Sales	$21,600
Food and packaging	$8,480
Payroll	5,400
Occupancy (rent, depreciation, etc.)	3,970
General, selling, and administrative expenses	3,100
	$20,950
Income from operations	$650

Assume that the variable costs consist of food and packaging; payroll; and 40% of the general, selling, and administrative expenses.

a. What is Wicker Company's contribution margin? Round to the nearest million. (Give answer in millions of dollars.) $fill in the blank 1 million

b. What is Wicker Company's contribution margin ratio? Round your answer to one decimal place. fill in the blank 2 %

c. How much would income from operations increase if same-store sales increased by $1,300 million for the coming year, with no change in the contribution margin ratio or fixed costs? Round your answer to the closest million. $fill in the blank 3 million