For example, the original price of 70 yuan is 30% off, that is, 70×(3÷ 10)=2 1.

make a discount

For example, 20% discount means: original price × 20% discount.

2. Original price × discount/10

For example, the original price of 40 yuan is 50% off, that is, 40×5/ 10 =20.

3. Original price ×0. discount

For example, the original price 100 yuan, 10% discount, that is:100× 0.1=10.