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The price of an item yesterday was $120. Today, the price fell to $84. How do you find the percentage decrease?

Answer 1

Kennedy Adams

#(120-84)*100/120=30%#

The discount (in terms of USD) is #120-84=36#

The discount rate #Percent = 36*100/120=30%#.

Just multiply discount price by 100 and divide by the original price.

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Answer 2

Jameson Allen

To find the percentage decrease, you first calculate the difference between the original price and the new price. Then, divide that difference by the original price and multiply by 100 to express it as a percentage.

Formula: Percentage decrease = ((Original price - New price) / Original price) * 100

Substitute the given values: Percentage decrease = ((120 - 84) / 120) * 100 Percentage decrease = (36 / 120) * 100 Percentage decrease = 0.3 * 100 Percentage decrease = 30%

So, the percentage decrease is 30%.

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.