In shopping, ** and other scenarios, we often encounter continuous discounts. For example, an item is discounted by 9% and then by 7. In this case, how to calculate the final **?This article will introduce in detail the calculation method of 9% off and then 7% off.
1. Understand the concept of discounting
Before calculating continuous discounts, let's first understand the basic concept of discounting. A discount is a sale of goods or services that reduce the original price by a certain percentage. For example, a 9% discount means a 10% reduction in the original price, i.e. 90% of the original price;A 7% discount means a 30% reduction in the original price, i.e. 70% of the original price is paid.
2. Calculation method
When encountering continuous discounts, we need to follow the principle of "multiply first and subtract later", that is, calculate the ** after the first discount first, and then calculate the ** after the second discount. The specific calculation steps are as follows:
1.Calculate after the first discount**: Multiply the original price of the item by the discount rate of the first discount. For example, suppose the original price of the product is 100 yuan, and the ** after a 9% discount is 100 x 09 = $90.
2.Calculate after the second discount: Multiply the first discount by the discount rate for the second discount. For example, for $90 after a 9 discount, 90 x 0 after a 7 discount7 = $63.
Therefore, after 9% discount and 7% discount, ** is 63% of the original price.
3. Example analysis
To better understand how continuous discounts are calculated, let's look at an example:
Suppose the original price of an item is 100 yuan, first 9% off, then 7% off. What is the final **?
1.After the first discount**: 100 x 09 = 90 yuan (after 9% discount).
2.After calculating the second discount**: 90 x 07 = 63 yuan (after 7% discount).
Therefore, after 9 discounts and 7 discounts, the ** is 63 yuan.
Successive discounts are calculated by calculating the first discount and then the second discount. Hopefully, this article can help you understand the calculation method of 9% off and then 7% off, so that you can accurately calculate it in scenarios such as shopping, **, etc.