Sample Problem:

A hotel has $1,350$ rooms. Last night, rooms $107-114$ were pulled out of order for a raw sewage leak $($remember$,$ physically count how many rooms are out$--$in this case $8).$ Overall $10$ rooms were comped $($free$,$ a price of ZERO!$)$ because of smells related to the fiasco. $510$ rooms were sold for $$299$ and $804$ rooms were sold at $139.$ This computation is for internal reporting, so include any OOO$/$OOI and complimentary rooms when making your calculations. ALWAYS set up the problems the way you are taught and refer to the Front Office Math Hint$/$Help Sheet.