Final answer:
Margaret's employee discount is 20%, calculated by taking the difference between the original price and the discounted price ($25 - $20 = $5), and dividing by the original price ($5 / $25), then multiplying by 100.
Step-by-step explanation:
Margaret received a discount at her clothing store, which reduced the price of a $25 item to $20. To calculate the employee discount percentage, we take the difference between the original price and the discounted price, and then divide by the original price. So, the calculation would look like this:
Discount Amount = Original Price - Discounted Price = $25 - $20 = $5
Discount Percentage = (Discount Amount / Original Price) * 100
Discount Percentage = ($5 / $25) * 100 = 20%
Therefore, Margaret's employee discount is 20%.