[revnode]

Bobby gave Lisa $10. Lisa then gave $3 to Uncle Sam. What percentage of Bobby's money went to Uncle Sam? 30%. It's that simple. Bobby gave Uncle Sam 30% of his money.

[Aunche]

If you use that logic, 100% of Bobby's money goes to Uncle Sam after a long enough chain of transactions.

[revnode]

We can stop at 3rd parties. That's reasonable enough.