Robichau Inc. reported the following results from last year’s operations: 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, the company has a $900,000 investment opportunity with the following characteristics: Sales $ 1,530,000 Contribution margin ratio 30 % of sales Fixed expenses $ 306,000 The company’s minimum required rate of return is 20%. Last year's return on investment (ROI) was closest to: