
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 social practice group from Class 2, Grade 9, went to a supermarket to investigate the sales of products during the May Day period. Below is the communication between Xiao Min and other students. According to their conversation:
Xiao Min: The cost price of the product is 12 yuan/piece,
Student A: The selling price is 20 yuan/piece, and 200 pieces can be sold per day,
Student B: For every one yuan increase in unit price, 20 fewer pieces are sold per day, and for every one yuan decrease, 20 more pieces are sold per day,
Based on their conversation, please calculate the selling price per piece to achieve a daily profit of 1540 yuan.

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