
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 store increased the original price of a backpack by a certain percent and then lowered the new price by the same amount. If the final price of the backpack was 64% of the original price, by what percent was the price increased and decreased?
A) 40%
B) 50%
C) 60%
D) 70%
E) 80%

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