The price of a cup of coffee was $2.20 yesterday. Today, the price rose to $2.35. Finally percentage increase. Round your answer to the nearest 10th of a percent.

To find the percentage increase, you need to follow these steps:

1. Calculate the difference in price.
2. Divide the difference by the original price.
3. Multiply the result by 100 to get the percentage.

Applying this to your question:

1. Difference in price = New price - Old price
Difference = $2.35 - $2.20
Difference = $0.15

2. Divide the difference by the original price:
Percentage increase = ($0.15 / $2.20) * 100

3. Calculate the percentage:
Percentage increase = (0.06818181818…) * 100
Percentage increase = 6.8181818181…

Rounded to the nearest 10th of a percent:
Percentage increase ≈ 6.8%

The price of a cup of coffee has increased by approximately 6.8%.