Passive table...thought more limpers would come in behind me.

With the OESD on the flop and those bets before me, I tried to determine what my odds were there if a call was worth it.....however I am not very good at trying to do this math on the fly...then I was running out of time so I just folded. Any suggestions?

Dealer: Hand #143278875
Dealer: cashgarage has 5 seconds left to act
Dealer: cashgarage posts the small blind of $0.05
Dealer: Buckeye1959 posts the big blind of $0.10
Dealer: You have been dealt [7h 8h]
Dealer: bunman100 folds
Dealer: berry03 calls $0.10
Dealer: funplay1 calls $0.10
Dealer: BobbySalami calls $0.10
Dealer: MyJewishLife folds
Dealer: Buttman_71 folds
Dealer: spidey23 folds
Dealer: cashgarage calls $0.05
Dealer: Buckeye1959 checks
Dealer: The flop is [9d 6h Kd]
Dealer: cashgarage bets $0.50
Dealer: Buckeye1959 folds
Dealer: berry03 calls $0.50
Dealer: funplay1 folds
Dealer: BobbySalami has 15 seconds left to act
Dealer: BobbySalami folds
Dealer: The turn is [8c]
Dealer: cashgarage bets $1.50
Dealer: berry03 calls $1.50
Dealer: The river is [Qs]
Dealer: cashgarage bets $4.50
Dealer: berry03 calls $4.50
Dealer: Buckeye1959 is sitting out
Dealer: cashgarage shows two pair, Nines and Sixes
Dealer: berry03 mucks
Dealer: cashgarage wins the pot ($12.85) with two pair, Nines and Sixes