Total asset turnover ratio = Net Sales/ Total assets
Total asset turnover ratio = 1.8
Total assets = 8,500,000
1.8 = Net Sales/ 8,500,000
Net Sales = 8,500,000*1.8 = 15,300,000
Return on Assets = Net Income/ Total assets
Return on assets = 8.5% = 0.085
Total assets = 8,500,000
0.085 = Net Income/8,500,000
Net Income = 8,500,000*0.085 = 722,500
Profit margin = Net income/Net sales
Profit margin = 722,500/15,300,000 = 0.0472
Profit margin = 4.72%