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Calculate the percentage decrease from sh 30 to sh 12.

April 16, 2026Mathematics

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Answer

\text{60\%}

2 steps

Find the decrease in cost.
Decrease = Original cost - New cost
$\text{Decrease} = \text{sh } 30 - \text{sh } 12$ $\text{Decrease} = \text{sh } 18$
Calculate the percentage decrease.
Percentage Decrease = (Decrease / Original cost) $\times$ 100%
$\text{Percentage Decrease} = \left(\frac{\text{sh } 18}{\text{sh } 30}\right) \times 100\%$ $\text{Percentage Decrease} = \left(\frac{18}{30}\right) \times 100\%$ $\text{Percentage Decrease} = \left(\frac{3}{5}\right) \times 100\%$ $\text{Percentage Decrease} = 0.6 \times 100\%$ \text{Percentage Decrease} = \boxed{\text{60%}}

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