
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
Four colleagues are sharing the cost of a workshop fee. After three additional colleagues join them, the cost per person decreases by $15.00. If the cost for each of the original four decreased by this amount, what was the total cost of the workshop fee?

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