
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
A merchant's cumulative sales from January to May reached 38.6 million yuan. It is predicted that the sales in June will be 5 million yuan, and the sales in July will increase by x% compared to June. The sales in August will increase by x% compared to July. The total sales in September and October are equal to the total sales in July and August. If the total sales from January to October must reach at least 70 million yuan, then the minimum value of x is.

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