How do you make an expense budget for housekeeping in a hotel?

How do you make an expense budget for housekeeping in a hotel?
Firstly you will need to define what is used within the housekeeping process's. This normally will be cleaning materials, laundry, PPE (Personal Protective Equipment like gloves, disposable aprons etc) costs of machinery like vacuums, polishes , scrub dryers, brushes, mops, buckets as an example. Then consider the average use of replenish-ables like the cleaning fluid's, toilet rolls, mop heads, dusters and PPI - This will give you a cycle when these will require purchase as an estimate as there is no magic calculation. It will give you a cost from suppliers and this feeds in to the expense area, look at the machinery and requirements for annual services, rentals etc again these can be allocated across a budgets. Once you have established the expenditure you can work on creating a first draft budget. Every budget will require more than one attempt to get it reasonable as you will not get the sum you want but your are likely to get the sum allowed. You will need to have a business case ready for a budget that is likely to exceed what senior managers wish you to have i.e. machinery used is not coming to the end of it functioning life and is costing high values in repairs where a new machine will have warranty and save x amount over y period.