What happened to the other $1.00???

3 men needed a room for the night and the hotel manager tells them it will cost them $30.00.

Each man then hands over $10.00 and then heads to the room.

The hotel manager then realises the cost of the room should’ve have been just $25.00
So he gives his bellboy $5.00 and tells him to give the 3 men their change.

The bellboy decides that $5.00 is a bit difficult to split into 3 and so gives each man $1.00 and keeps $2.00 for himself.

This means each man ACTUALLY paid $9.00 each

So, 3 x $9.00 = $27.00 plus the $2.00 the porter kept = $29.00

WHAT HAPPENED TO THE OTHER $1.00??