1. Select a Reservation
  2. Click "Edit" in the upper right hand corner
  3. Scroll down to "Add-ons & Fees", click "Add a new item"
  4. Select either a Set Amount or Percentage
  5. Input the the number, make sure it is a negative value (-40)
  6. Add Tax if you need to discount the Tax collected. 
  7. Scroll down and click "Save Changes"

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