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Finding Increase or Decrease Percentage in Situations

What is the p...

Question

What is the percentage change when $320$ is decreased to $28$

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Solution

percentage change = $\frac{n e w v a l u e - o l d v a l u e}{o l d v a l u e} \times 100 = \frac{28 - 320}{28} \times 100 = - 1042 %$ Therefore Decrease in % = $1042$

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