I charge $55- $60/yard installed depending on type of mulch. I perfer triple shredded hardwood and I pay $10/yard wholesale. Does the customer live 60 miles away? Thats a long way to travel to only do 8-10 cubic yards of mulch, you may want to think about traveling that far. 99% of the time I also talk the customer into edging around the beds which I charge $1.00 per foot.