
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 certain supermarket sells a kind of mascot toy with a sales cost of $40$ yuan per item. According to market analysis, if the selling price is set at $50$ yuan per item, 500 items can be sold in a month. It is known that for every increase of $2$ yuan in the selling price, the monthly sales volume decreases by 20 items. What should be the selling price per item so that the monthly sales profit can reach $8000$ yuan?

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