We are in need to write a formula (how to calculate) numeric format.
In the excel file we give you the price of cleaning for some sqm.
We need to write a forumla that caluclate the cost of cleaning X sqm, the price will be less expensive as the size goes up, but in between some sqm its increases different amount consider over a certain numer you use 2 cleaners, 3 etc.
This formula is based for moving cleaning and when its done. it should show a price range from x-y amount.