Doing a T&M job and charging $50 an hour for me (licensed) and less for my helper. But the job I've been doing at a church is ongoing. Wondering if I should charge less because of the volume of work I'm getting. They just keep adding more which is great, but figure I feel like I should charge less, like $45 because of the amount of work.. give them a volume break. any opinions? I want to be fair.