A price sheet puts every clinic in the same bucket. Your clinic is not in the same bucket. Room counts vary, floor types vary, visit volume and restroom load vary, and what "clean" actually means for your specialty varies.
If a cleaner quotes you a number before they have walked your space, they are either guessing or already planning to cut corners. Nobody delivers quality work on a price they pulled from thin air, and the short-term savings always come back as missed rooms, skipped floors, and higher turnover on the crew.
Trust the ones who ask to come see the space first. That is the cleaner you want.