Contribution margin and contribution margin ratio

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

Assume that the variable costs consist of food and paper, payroll, $\backslash (25\backslash \%\backslash )$ of occupancy and other expenses, and $\backslash (40\backslash \%\backslash )$ 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$).$

million

b$.$ What is McDonald's contribution margin ratio? Round to one decimal place. $\backslash (\backslash \%\backslash )$ million