What is the highest number possible for this situation?

_ _ is _ _ % of _ _
The first number ( _ _ is) is the number we are trying to make the biggest

Rules:
- You have to fill in each digit ( _ represents a digit), you can't surpass or go below the limit
- You can only use the numbers 0-9 up to once
Example:
32 is 50% of 64
This statement is true
The number we are trying to make the biggest is the first number (in this case 32)
This is a true statement but not the highest possible answer.