Selling Price after a 18% Markup is applied to an item that Cost $693.28

Given: Cost = $693.28,  Markup = 18%
Markup as a Decimal: 18% = 0.18
Formula:
Selling Price = Cost * (1 + Markup as a Decimal)
Selling Price = $693.28 * (1 + 0.18)
Selling Price = $693.28 * 1.18
Selling Price = $818.07
Notes:
Markup Amount = Selling Price – Cost = $818.07 – $693.28 = $124.79
Profit = Markup Amount = $124.79
Profit Margin =   =   = 0.1525 = 15.25%