Answer:
60%
Explanation:
The profit made by the retailer is the difference between the selling price and the cost price of the tape recorder.
Profit = Selling Price - Cost Price
Profit = $80 - $50 = $30
The percentage profit can be calculated as:
Percentage Profit = (Profit / Cost Price) x 100
Percentage Profit = ($30 / $50) x 100 = 60%
Therefore, the retailer made a percentage profit of 60% on the tape recorder.