
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 sole proprietor has a commodity. If it is sold at the beginning of the month, a profit of 100 yuan can be made, and the principal and profit are deposited into the bank. Knowing that the bank's monthly interest rate is 2.4%, if it is sold at the end of the month, a profit of 120 yuan can be made, but a storage fee of 5 yuan must be paid. Should the commodity be sold at the beginning or at the end of the month?

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