Answer:
81.5
Solution:
Net profit = Revenue - Cost
Net profit Margin = (Revenue - Cost)/ Revenue
Cost = $15,000 + $12,000
Cost = $27,000
Revenue = $145,952
Net profit Margin = ($145,952 - $27,000)/ $145,952
Net profit Margin = 0.815 or 81.5% (0.815*100 = 81.5).