Amazon Company reported income and assets as follows for last year: Sales $6,300,000 Variable expenses 4.930,000 Contribution margin 1,370,000 Fixed expenses 803,000 Net operating income $ 567,000 Average operating assets $3,000,000 At the beginning of this year, Amazon has a $900,000 Investment opportunity with the following expectations: Sales Contribution margin ratio Fixed expenses $1,530,000 30% of sales $ 306,000 Amazon's minimum required rate of retum is 20% The ROI for Amazon's investment opportunity this year, considered alone, is closest to: Multiple Choice 50.0% 51.0 17.0N 100%