I've got you dude (dudett).

So each hotel has it's OWN percentage, meaning that you'll be ordering three items. The simplest way to find a percentage is by dividing the rented rooms by the total rooms then multiplying that by 100 and slapping that percentage sign next to your resulting answer.

Hotel one had 80% of it's rooms rented out since (36/45)x100= 80

Hotel two had 75% of it's rooms rented out due to (24/32)x100= 75

Hotel three had 83.33% of it's rooms rented out cuz (15/18)x100=83.3333333333333...

You can order these. Good luck, I hope this was of aid.