Someone help me with this simple math

[Doomy]

so these three guys went to rent a hotel for a night for $30 so they split it up and paid him $30 and the manager made a mistake and it was $25 not $30. So he gave the boy $5 back to give the guys, the boy stole $2 and gave $3 back to the guys, so its like they paid $9 ea right?

9+9+9 = 27 + 2 = 29

Where did the other $1 go?