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What is profit? Is profit the same as profit?
Mathematically, it is the same, equal to price-cost.

Profitability refers to a capability index of enterprises, individuals or operating institutions. For enterprise management, it is also a profit model that focuses on human resources allocation and promotes economic development. Promote the horizontal financing of funds and the horizontal connection of economy, and improve the overall efficiency of resource allocation.

Selling price = cost+profit

Price = cost ×( 1+ profit rate)

Profit = selling price-cost

Profit = cost × profit rate

Profit rate = profit/cost

Profit rate = (selling price/cost-1) × 100%

Discount = selling price ÷ pricing × 100% (discount < 1)

Extended data

Example: A shopping mall will increase the cost price of a sports shoe by 40%, then mark it and sell it at a 20% discount. In this way, each pair can still make a profit of 2 1 yuan. What is the cost price of this badminton suit?

Analysis: Let the cost be X yuan, starting from the cost: (1+40%)x is the marked price. Another 20% discount: (1+40%)x *80% is the selling price. Minus the profit of 2 1 yuan: (1+40%)x *80%-2 1, which is the cost price again. So: (1+40%) x * 80%-21= X. Take a line chart and the equation will be listed.

Baidu Encyclopedia-Profit