A number is decreased by 25% and then increased by 25%. The net percentage increase or decrease is:
Show answer & explanation
Correct answer: B
Explanation
The correct answer is option 2 i.e. 6(1/4)% decrease.
Calculations:
Net percentage = -25% + 25% + (-25 × 25)/100
⇒ -625/100 = -6.25%
Negative sign shows that it is decreased by 6.25%
⇒ (6 + .25)%
⇒ (6 + 25/100)%
⇒ (6 + 1/4)%
⇒ 6(1/4)%