
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
Sam invests in a stock which decreases by 30% on the first day, and then increases by 40% on its value at the end of the first day on the second day. What is the overall percent change in Sam's stock over the two days?

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