Percentage Profit/Loss/Discount (Junior Cert Mathematics): Quizzes

Profit as % of cost price

$\text{Selling Price} - \text{Cost Price}$

$\frac{\text{Profit}}{\text{Cost Price}} \times 100$

25%

When selling price > cost price

$\text{Cost Price} - \text{Selling Price}$

$\frac{\text{Loss}}{\text{Cost Price}} \times 100$

20%

$\text{Original Price} - \text{Sale Price}$

25%

The original price

The cost price