The price of a tool increased from ₹400 to ₹500. Calculate the percentage increase based on the original price.
25%
Increase in price = 500 − 400 = ₹100.
Percentage increase is taken on the original price of ₹400.
Percentage increase = \(\frac{100}{400}\times 100 = 25\%\).
Hence, the percentage increase is 25%.
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