Question

The cost of a product is decreased by 30 % and it's sale is increased by 20 %. Find gain or loss%

Answer 1

Answer:84

Step-by-step explanation:

increase in price is 20% hence new price is 20% of 100 =20 so new price would be 100+20=120.

Afterward there is a decrease of 30 % in price from 120 rs, hence 30% of 120 is 36 so new price would be 120–36 = 84.

So the overall %change is 16% as the initial price was 100 and new price is 84

Answer 2

Answer:

Let us assume the price of product be 100

1. Increase in price is 20% hence new price is 20% of 100=20 so new price would be 100+20=120.

2. Afterwards there is decrease of 30% in price from 120rs, hence 30% of 120 is 36 so new price would be 120-36=84.

3. So the overall % change is 16% as the initial price was 100 and new price is 84.