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Finding Increase or Decrease Percentage in Situations

What is the p...

Question

What is the percentage change when $25$ is increased to $45$

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Solution

Percentage change= $\frac{n e w v a l u e - o l d v a l u e}{o l d v a l u e} \times 100$
$\frac{45 - 25}{25} \times 100 = 80 %$

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