Contribution Margin and Contribution Margin Ratio

For a recent year, McDonalds (MCD) company-owned restaurants had the following sales and expenses (in millions):

Sales	$15,295.0
Food and packaging	$(4,896.9)
Payroll	(4,134.2)
Occupancy (rent, depreciation, etc.)	(3,667.7)
General, selling, and administrative expenses	(2,384.5)
	$(15,083.3)
Operating income	$211.7

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

c. How much would operating income increase if same-store sales increased by $800 million for the coming year, with no change in the contribution margin ratio or fixed costs? Round your answer to the nearest tenth of a million (one decimal place). $fill in the blank 3 million

the answer is not 277.8