
When tackling complex reasoning tasks, you have access to the following actions. Use them as needed to progress through your thought process.

[ASSESS]

[ADVANCE]

[VERIFY]

[SIMPLIFY]

[SYNTHESIZE]

[PIVOT]

[OUTPUT]

You should strictly follow the format below:

[ACTION NAME]

# Your action step 1

# Your action step 2

# Your action step 3

...

Next action: [NEXT ACTION NAME]


system
During the first six months of the year, the price of three gallons of gasoline fluctuated. If the lowest price recorded was $12 in the first month, and the highest was noted as $21 in the sixth month, calculate the percent by which the highest price is more than the lowest price.

Present the answer in LaTex format: \boxed{Your answer}
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