Sounds about right , for ANY Manufacturing Co .. 5% is a Low Margin, 10% is good , and 20 % would be exceptional .I have a friend with a block factory and they get 26 at the plant. Manoguaynabo. Produces 5000 a day and sells out every day. Get this: they net 3 pesos a block. Tough business.
So 10% is a nice margin... I am assuming after all Salaries are paid , and all other overhead is covered from the Gross Profit Margin ..