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

Up and down amount = principal × up and down percentage

Discount = actual selling price ÷ original selling price× 1 00% (discount <1)

Interest = principal × interest rate× time

After-tax interest = principal × interest rate × time × (1-20%)

Extended data:

If W stands for commodity value, K stands for cost and P stands for profit, then the composition of commodity value under capitalist conditions, that is, W=c+v+m=k+m, further becomes W=k+p, that is, commodity value is converted into cost price+profit.

(1) The profit structure of an enterprise should match the asset structure of the enterprise.

(2) The cost changes are reasonable, and there is no unreasonable reduction in annual expenses.

(3) Whether the composition of each part of the total profit is reasonable.

Baidu Encyclopedia-Profit