
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 that Elmer's new car gives 60% better fuel efficiency, measured in kilometers per liter, than his old car, and the diesel fuel for his new car is 25% more expensive per liter than the gasoline for his old car, calculate the percentage by which Elmer will save money using his new car instead of his old car for a 100-kilometer trip.

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