
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
The price of a certain stock was $1000 at the beginning of January. During January, the price increased by 30%. In February, the price decreased by 10%. In March, the price increased by 20%, and in April, it decreased by y%. At the end of April, the price of the stock was the same as it was at the beginning of January. Find the value of y.

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