
A store buys goods from manufacturer at cost price, a customer in turn buys the good from the store at selling price.
The store makes a profit when the selling price is more than the cost price and a loss when the selling price is less than the cost price.
Profit \({= \mathrm{selling \ price} - \mathrm{cost \ price}}\)
Loss \({= \mathrm{cost \ price} - \mathrm{selling \ price}}\)
Profit as Percentage of cost price \({= \frac{\mathrm{Profit}}{\mathrm{Cost \ Price}} \times 100\%}\)
Loss as Percentage of the cost price \({= \frac{\mathrm{Loss}}{\mathrm{Cost \ Price}} \times 100\%}\)
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