Selling Price after a 15% Markup is applied to an item that Cost $70

Given: Cost = $70,  Markup = 15%
Markup as a Decimal: 15% = 0.15
Formula:
Selling Price = Cost * (1 + Markup as a Decimal)
Selling Price = $70 * (1 + 0.15)
Selling Price = $70 * 1.15
Selling Price = $80.50
Notes:
Markup Amount = Selling Price – Cost = $80.50 – $70 = $10.50
Profit = Markup Amount = $10.50
Profit Margin =  
Profit/ Selling Price
=  
$10.50/ $80.50
= 0.1304 = 13.04%

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