Try the general cleaning section Kerri. You will get a detailed answer there or do a search at the top of the page - its a regular question. One piece of advice. Don't think of building your business just on what you charge. There is always someone who will do it cheaper. Cherish the customers who are prepared to pay you for the level of service you give them.Then give them it every time as much as you can.
Best of luck.
phil D