QUESTION 8 The contribution margin ratio O is gross profit divided by sales. O excludes variable period costs in its calculation O is calculated by dividing the amount "sales-total variable costs" by the sales amount. O equals sales revenue minus variable costs QUESTION 9 If a company had a contribution margin of $1,000,000 and a contribution margin ratio of 40%, total sales must have been . $1.500,000 $600.000. $2.500,000 5400,000