Weafer Inc. reported the following results from last year's operations: $14,000,000 Sales Variable expenses 9,560,000 4,440,000 3,740,000 Contribution margin Fixed expenses 700,000 Net operating income $ 7,000,000 Average operating assets Last year's margin was closest to: Multiple Choice 5.0% 73.3% 31.7% 10.0% Robichau Inc. reported the following results from last year's operations: $6,300,000 Sales Variable expenses Contribution margin 4,930,000 1,370,000 803,000 Fixed expenses 567,000 Net operating income Average operating assets $3,000,000 At the beginning of this year, the company has a $900,000 investment opportunity with the following characteristics: Sales Contribution margin ratio Fixed expenses $1,530,000 30% of sales 306,000 The company's minimum required rate of return is 20 %. closest to The residual income for this year's investment opportunity when considered alone Multiple Choice ($27,000) $0 $153,000 $179,100