I pay $30 a yard for mulch and charge no less than $80 per yard to haul it and put it down. For this, I also include one treatment of Snapshot when the mulch goes down.
I charge extra for shrub trimming - $5-$10 for most small to mid size shrubs
I charge $1 per foot for edging with my bed edger.
I do run a special in March where I knock off 25% of the installation price ($12.50 per yard) just to get the cashflow coming in and attract new customers! I call it Mulch Madness. It's a big hit because most people around here are basketball nuts!