Missing Dollar- Juniorgirlblog

There is no dollar missing.  The original total bill was $25.00 , but when each of the ladies paid $9.00 each which equals to $27.00.  The waiter had kept the $2.00 which was the tip to make it even when he gives the ladies their change back.  The waiter gave each of the ladies $1.00 back because 27+3=30.