Find- Where is the Missing $1?

Three People check into a Hotel. They pay $30 to the Manager and go to their Room.

The Manager suddenly remembers that the Room Rate is $25 and gives $5 to the Bellboy to return to the People.

On the way to the Room the Bellboy reasons that $5 would be difficult to share among Three People so He Pockets $2 and gives $1 to each Person.

Now each Person paid $10 and got back $1. So, they Paid $9 each, totalling $27.

The Bellboy has $2, totalling $29. Where is the missing $1?

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Answer/Solution:
Originally, they paid $30, they each received back $1, they now have only paid $27.

Of this $27, $25 went to the Manager for the Room and $2 went to the Bellboy.