Are you trying to determine a reasonable cleaning budget for your commercial building? Due to the variety of building types and office setups it is very difficult, if not impossible, to determine standard commercial cleaning costs.
Chain stores, such as movie theaters and restaurants, may be be able to establish a per seat average cost due to the fact their buildings are likely very similar in size and set up, however for most businesses this is difficult.
There are 28 million small businesses (defined as a company with less than 500 employees), so there are millions of unique, non-cookie cutter office and work environments to consider. With all that variety it’s hard to provide a per square foot charge to use as a benchmark.