To determine the percent discount from a coupon, you can use the formula:
[ \text{Percent Discount} = \left(\frac{\text{Discount Amount}}{\text{Original Price}}\right) \times 100 ]
If the coupon shows a discount amount (e.g., $10 off) and an original price (e.g., $50), you would calculate it as ((10 / 50) \times 100 = 20%) discount. Alternatively, you can also find the final price after applying the coupon, then compare this with the original price to find the percentage decrease, which should yield the same result.
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