Invested Capital = Current Assets + Non-Current Assets = Total Assets = $750,000
Total Asset Turnover = Sales/ Total Assets = $600,000/$750,000 = 0.8
Net income = Net Profit = $96,000
Net Profit Margin = Net Profit / Sales = $96,000/$600,000 = 0.16
Return on Assets = Net Profit Margin * Total Asset Turnover = 0.16 * 0.8 = 0.128
So
Total Asset Turnover = 0.8
Net Profit Margin = 0.16
Return on Assets = 0.128