Final answer:
To find the percentage decrease from $2.75 to $2.40, subtract the two amounts to get $0.35, then divide by the original amount $2.75 and multiply by 100, resulting in a 12.7% decrease.
Step-by-step explanation:
The question involves calculating the percentage decrease from $2.75 to $2.40.
- First, find the difference in amounts: $2.75 - $2.40 = $0.35.
- Next, calculate the percentage decrease: ($0.35 / $2.75) × 100 = 12.7272...
- Finally, round to the nearest tenth of a percent: 12.7%.
The percentage decrease from $2.75 to $2.40 is 12.7% when rounded to the nearest tenth of a percent.