Respuesta :

$100 

100% would be doubling it.

Answer

     = $100


Explanation

Profit =  selling price  -  buying price

percentage profit = profit/buying price × 100%

100% = profit /$50

Profit = 100% × $50

           = 100/100 × $50

             = 1 × $50

              = $50

Selling price = buying price + profit

                     = $50 + $50

                     = $100