
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
Elmer's new car provides 60% better fuel efficiency measured in kilometers per liter compared to his old car, but uses diesel fuel that is 25% more expensive per liter than the gasoline used by his old car. Calculate the percentage by which Elmer will save money when using his new car for a 1000 km trip.

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