The percentage application problems of mathematics in the second volume of the sixth grade are divided into: 1, more (or less) application problems. This kind of application problem first finds out how much the large number is more than the decimal number, and then calculates the percentage of the extra part in the unit "1" by division. 2. Application questions about tax payment and interest. Just substitute this into the formula. Taxable amount = income × tax rate; Interest = principal x interest rate x time. 3. Regarding the application questions of discounts, the formula of such questions is: original price = current price ÷ discount number, and current price = original price × discount number. 4. A slightly more complicated application problem. It is easier to understand this kind of application problems by solving equations.

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