I'm installing ninety 6' arbs, I get them wholesale for 49 each I mark up a total of 11%, 5% for me 6% for state tax (st8 the customer though). So that's $4895 not including delivery or labor. My question is what is a good install price for 90. No ammendments will be used, and I use an auger to dig all the holes. I was thinking of charging $1890 for install and then deliv. So looking at my end (labor) only, a 5% mark up on 90 plants is 220.50, add labor and delivery at 1965.50 for a total of 2185.50. I've installed many arbs so no freak out about ammending please.