You can change an individual sitter's pay rate by editing their pay rate in their profile.
First, edit the sitter's profile by finding the sitter using the Search box (type a dollar sign ($) and then part of the sitter's name) or by searching for the sitter using SITTERS > Sitter List.
Then, under the Pay tab for that sitter make the desired pay rate change.
Remember to Save Changes.
This will affect only visits that you create in the future. To change past visits, use the Apply New Rates button to choose the visits you want to change.