Payel bought an item at 20% discount on its original price. he sold it with 40% increase on the price he bought it. The new sale price is by what percent more than the original price?

Question: Payel bought an item at 20% discount on its original price. he sold it with 40% increase on the price he bought it. The new sale price is by what percent more than the original price?

Solution:
Let, the original price be 100
After 20% discount, the price is = 100 - 20
= 80 taka

Selling price = 80 + 80 × 0.4
= 80 + 32
= 112 taka

%increase = (112 - 100)%
= 12%