Question

If the price is decreased by 20%, and then increased by 25%, then what is the percentage change?​

Answer 1

Answer:

0%

Step-by-step explanation:

Let the original price be 'a'.

  decreased by 20%:

⇒ a - (20% of a)

⇒ a - (20/100  * a)  ⇒ a - 0.2a

⇒ 0.8a

    Increased by 25%

⇒ 0.8a + (25% of 0.8a)

⇒ 0.8a + (25/100  of 0.8a)

⇒ 0.8a + 0.2a

⇒ a

       There is no change in value. Hence profit is 0.