The bond Trump is posting with the court now is essentially a placeholder, meant to guarantee payment if the judgment is upheld. If that happens, the presumptive Republican presidential nominee will have to pay the state the whole sum, which grows with daily interest.
If Trump wins, he won’t have to pay the state anything and will get back the money he has put up now.
The only thing this does is prove (once again) that the justice system has different rules for rich people (or even people who play shell games with their money to grossly inflate their assets).