Question

A number is increased by 25% and then decreased by 20% find the net increase or decrease percent solve

Answer 1

suppose the original number is

100%

increase by 25%

= 100 × 125/100 = 125%

then decrease

125 × 80
-------------
100

= 100%

no change

Answer 2

$\large\green{\textbf{\underline{\underline{Here\:is\:your\:Answer :- }}}}$

• Let the Number be 100.

➟ 100 × (100 + 25)% × (100 - 20)%

➟ 100 × 125% × 80%

➟ 100 × $\large\tt{\frac{125}{100}}$ × $\large\tt{\frac{80}{100}}$

➟ 100 × $\large\tt{\frac{125}{100}}$× $\large\tt{\frac{8}{10}}$

➟ 125 × 0.8

➟ 100%

No change..