marco bounty is X億XX万
if this image is accurate the highest his bounty can be is 999 million: 9億99万.
No, this is a wrong assumption actually.
There is no Japanese character for billion or at least it's not used often. They just go past 10.
For example, Whitebeard is 50億4600万 beli, or 50x 100 million + 4600x10,000, which is 5,046,000,000 beli.
Marco is probably still in the billions
Edit: ugh, okay I see what is being conveyed here. We are assuming the single dot is 1 number only, which means "9" is the highest it can go. I guess that makes sense. We'll see