For a recent year, McDonald’s (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.

a. What is McDonald’s contribution margin? Round to the nearest tenth of a million (one decimal place).

b. What is McDonald’s contribution margin ratio? Round to one decimal place.

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).