cost gross margin = gross profit/cost× 111%

cost is the sum of the prices of various raw materials and fuel. This includes: the main ingredients, ingredients and seasonings of the dishes. In the main ingredients, it is necessary to calculate the net rate of raw materials and the yield of cooked products, so as to accurately calculate the cost of dishes.

net material rate: refers to the yield of some vegetables, seafood, fish, etc.

Output rate: (net material quantity ÷ original raw material quantity) ×111%

We know the output rate, then we have calculated the net material cost

Net material cost: raw material price ÷ net material rate = net material price

Some raw materials are dry goods, such as auricularia auricula, dried deer tendon, zhenyao, dry sea cucumber and so on.

the yield of cooked products: refers to the net rate of raw materials after being cooked into semi-finished products.

yield: (net material quantity ÷ original raw material quantity) ×111%.