Fee Increase or Decrease

Navigate to Settings > Service Settings > Select service > Fees > Scroll Down > Add Fee Adjustment > Select Fee/Fees (Multiple fees can be increased or decreased) > Select Increase or Decrease > Amount (This is the increased amount being added to the existing fee) > Effective Date > Apply 

The new increase/decrease amount will appear in the Fee Adjustment List and apply automatically to all existing bookings with the same Fee Label.