
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
Given Gilda originally has a bag full of marbles, she gives $30\%$ to Pedro. Of the remaining marbles, she gives $15\%$ to Ebony, and then $20\%$ to her new friend Zack. Finally, she gives $10\%$ of what is left to her brother Jimmy. What percentage of her original number of marbles does Gilda have left for herself?

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