Need to calculate cost to do floor buffing, waxing, (6) times per year. Stripping 2x per year for 1800 sq ft. This need not cover supply cost. Need general sq ft costs, and will make adjustments for supplies. Haven't bid on these type contracts in past. Standard cost I've used for commercial cleans have been roughly 28 cents - 45 cents, based on finished and unfinished area. Can anyone give me an idea of an standard guideline cost for the above services?