You can determine your own hourly wage based on your experience and qualifications. The domestic helpers on Haushaltshilfe24 charge around €10 to €22 per hour. The hourly wage varies depending on the region. That's why it's worth taking a look at the hourly wages of other domestic helpers in your area.
By the way: At Haushaltshilfe24 you don't have to pay a commission as is usual with many cleaning agencies. You receive 100% of the hourly wage that you set and negotiate with your clients.
Here you can find out more about how much you can earn as a domestic helper with Haushaltshilfe24 and how your wage is made up: How much can I earn as a domestic helper with Haushaltshilfe24?