The price of a gallon of unleaded gas has dropped to 2.78 today. Yesterday's price was $2.85.
Find the percentage decrease.
Round your answer to the nearest tenth of a percent
To find the percentage decrease, we need to calculate the difference between the original price and the new price, divide it by the original price, and then multiply by 100.
The difference between yesterday's price and today's price is: 2.85 - 2.78 = 0.07
To calculate the percentage decrease, we divide this difference by yesterday's price: 0.07 / 2.85 ≈ 0.0246
Finally, we multiply this value by 100 to get the percentage decrease: 0.0246 * 100 ≈ 2.5
Therefore, the percentage decrease is approximately 2.5%.