“If the cost price is 1500 and the selling price is 1200 what is the discount percentage?”

"The discount is the difference between the cost price (1500) and selling price (1200): 1500 - 1200 = 300. The discount percentage is (discount ÷ cost price) * 100 = (300 ÷ 1500) * 100 = 20%. This calculation is essential in commerce and economics enabling businesses to assess pricing strategies profit margins and consumer incentives reflecting the practical application of percentages in financial decision-making."