Selling Price after a 75% Markup is applied to an item that Cost $80

Given: Cost = $80,  Markup = 75%
Markup as a Decimal: 75% = 0.75
Formula:
Selling Price = Cost * (1 + Markup as a Decimal)
Selling Price = $80 * (1 + 0.75)
Selling Price = $80 * 1.75
Selling Price = $140
Notes:
Markup Amount = Selling Price – Cost = $140 – $80 = $60
Profit = Markup Amount = $60
Profit Margin =   =   = 0.4286 = 42.86%