Party Poker No-Limit Hold'em, $ BB (8 handed) FTR converter on zerodivide.cx

MP1 ($22.65)
MP2 ($71)
CO ($40.79)
Button ($24.25)
SB ($27.05)
BB ($32.25)
UTG ($20.14)
Hero ($20.65)

Preflop: Hero is UTG+1 with A, A. SB posts a blind of $0.10.
UTG calls $0.25, Hero raises to $2, 3 folds, Button calls $2, 2 folds, UTG calls $1.75.

Flop: ($6.35) 8, 2, Q (3 players)
UTG checks, Hero bets $4, Button calls $4, UTG folds.

Turn: ($14.35) Q (2 players)
Hero checks, Button checks.

River: ($14.35) 4 (2 players)
Hero checks, Button bets $15, ....???

The player in question has a V$p of 50%+, other than that no other reads except he's super super loose.