The Portland Division's operating data for the past two years is as follows Year 1 Year 2 Return on investment.... Net operating income 24% ? $288,000 2 12% Margin. Sales $1,600,000 The Portland Division's margin in Year 2 was 150% of the margin for Year 1. The turnover for Year 1 was: 1.50 O 10.00 O 2.00 O 3.20