Profit Margin on an item that Cost $20 with a Selling Price of $30

Given: Cost = $20,  Selling Price = $30
Formula:
Profit Margin =  
Selling Price – Cost/ Selling Price

Profit Margin =  
$30 – $20/ $30

Profit Margin =  
$10/ $30

Profit Margin = 0.3333 = 33.33%
Notes:
Profit = Selling Price – Cost = $30 – $20 = $10
Markup Amount = Profit = $10
Markup Percentage =  
Markup Amount/ Cost
=  
$10/ $20
= 0.5 = 50%

The solution above and other related solutions  were provided by the Profit Margin given Cost and Selling Price Application.