If you're wanting to increase the pay for public holiday you have configured on the system, Please follow the below on how to do this.
Click Settings, then click Finance.
Click Payroll, then click Rate Sheets.
Select the relevant rate sheet.
Click Revisions, then click the Revision.
Go into Details, then change View to Public Holiday.
In the top right, click the plus Icon.
Enter a Service Type, Start time and Pay Rate & PH rate.
Click Save, then go back into Revisions.
Reapply the Rate Sheet, selecting Apply?
📌Note: If you wish to simply increase the rates already applied for Public Holiday, Please select the arrow on the left of the already existing rate and make the change via the Pay Rate or PH tabs.