1, memorize the relevant formula of profit.

Profit = selling price-purchase price, profit = purchase price × profit rate, total profit = single piece profit × sales volume, profit rate = selling price-purchase price, purchase price × 100%, and profit rate = profit × 100%. There is also the question of discount, so we must understand the meaning of discount.

For example, 20% discount is the original price ×80%, and 10% discount is the original price ×10% X. If you memorize the formula and understand the quantitative relationship in the topic, the profit problem will be solved.

2. Do more questions of the same type.

Profit is one of the most important and difficult knowledge points in junior high school. Like other application problems, it is the key to correctly find the equivalent relationship in the fractional equation. To do this, we should not only skillfully use the above equations, but also properly practice such problems.

3. Pay attention to the study of equations.

Elementary schools generally use arithmetic to solve application problems, while junior high schools generally use equations to solve problems, which is not easy for students to accept from the perspective of thinking, causing great difficulties. The key to the application of the solution of the column equation is to find out the equivalence relation. How to find out the mathematical equivalence relation from a large number of language descriptions is a particularly confusing place for students.

Step 4 find out the meaning of numbers

Profit itself is abstracted from commercial activities, and almost all topics are related to purchase price, selling price and profit, especially the simplest profit problem. Before doing the problem, students must understand what the buying price and selling price are respectively. Only by distinguishing these clearly can we do the problem correctly.

5. Have confidence in yourself

Only by correctly understanding the meaning of each noun in the profit problem, knowing which values correspond to which nouns, and then correctly substituting the formula into it, can such a problem be solved. After the above study, children will have a deeper understanding of this kind of questions, and they will be able to answer these questions successfully when they take the exam.

Brief introduction of profit and profit quality characteristics

I. Brief introduction of profits

Profit is the business achievement of entrepreneurs, the comprehensive reflection of the business effect of enterprises and the concrete embodiment of their final results.

Second, the characteristics of profit quality

Quality characteristics of profit:

1, a certain profitability. It is the final financial achievement of an enterprise in a certain period of time.

2. The profit structure is basically reasonable. Profit is measured according to the principle of proportion, which is the result of subtraction of income and expenses in a certain period of time.

3. The profit of an enterprise has a strong ability to obtain cash.

4. The factors affecting profit are complex, and the calculation of profit contains subjective assumptions, and the results may vary from person to person, which is operable.