How to calculate the profit of pharmaceutical agents? Where's the formula? For example, the low price of 60 drugs, the tax stamps of 7 distribution points, and the price of 10 point, how to calculate

How to calculate the profit of pharmaceutical agents? Where's the formula? For example, the low price of 60 drugs, the tax stamps of 7 distribution points, and the price of 10 point, how to calculate 180? Fare to distributor = bid price 180X( 1- 7% delivery) =167.4.

Tax bill cost = (opening price 167.4- reserve price 60)X 10%= 10.74.

Profit = opening fare 167.4- reserve price 60- tax bill cost 10.74=96.66.

According to the bid price, the profit rate = 96.66/180x100% = 53.7%.

According to the reserve price, the profit rate is 96.66/60x100% =161.1%.