The amount you should pay a cleaner or 3 hours of cleaning is around $60.00 to $75.00 depending on the hourly wage pay in your location.
Some cleaners charge a flat fee per job and some cleaners charge by the hour.
Some cleaners may charge $75.00 to $100.00 or $150.00 for a cleaning job depending on how much work needs done.
And some cleaners charge $17.45 an hour to $21.47 an hour and some cleaners with more experience and more help may charge around $40.00 an hour.
If your cleaner gets $17.45 an hour then you would pay the cleaner around $52.35 for the 3 hours of cleaning and sometimes a service call if they charge it.
If the cleaner charges $21.47 an hour then you would pay the cleaner $64.41 for 3 hours of cleaning.
Ideally you should expect to pay at least the minimum wage in your area for a cleaner, although paying them more can get you better results and a better cleaner.
And if the cleaning requires a lot more work you should up the pay.
On the lower end some cleaners charge $75.00 for 3 hours of work or $25.00 an hour.
For more professional cleaners they charge around $90.00 for 3 hours of cleaning or around $30.00 to $50.00 an hour.
Big cities often have higher rates for cleaners than smaller towns and a one time deep clean also costs more than regular maintenance cleaning.
And highly experienced or licensed and insured cleaners will charger higher and if the cleaner supplies the cleaning supplies then they will of course charge more.