How to calculate a mathematical formula, such as 2500 yuan for goods?

Solution:

The calculation method of this math problem is as follows:

A mathematical formula is calculated like this. For example, 2500 yuan is 20% off, so the current price is

2500x0.8

=2000

A mathematical formula is calculated like this. For example, 2500 yuan is 30% off, and the current price is

2500x0.7

= 1750

A mathematical formula is calculated like this. For example, a commodity with a price of 2500 yuan is 60% off, and the current price is

2500x0.6

= 1500

A mathematical formula is calculated like this. For example, give a discount for a product of 2500 yuan. The current price is

2500xa÷ 10

=250a