I know this should be in the landscape forum, but I kind of need an answer fast. I just want to know from those of you who install plants, what is your mark-up % for your guarantee. Example: 1 Colorado Blue Spruce. Your Cost $99.00 What is the amount you would mark up the tree for your guarantee. PLEASE NOTE: I'm not looking for a price for the labor involved or the mark-up for the extra jingle in your pocket as well, JUST THE GUARANTEE! Thanks all!