Min 45.35 an hour and that's if I am really giving a great deal. In reality in Chicago(Cook County) I allow at least 75.00 an hour for any trim job I would do myself.
If I had to send a worker out I need to charge 75.00 anyhow just to make about 30.00 an hour gross on him, after all my costs I get 7.50 to 10.00 a man hour at that rate, then of course the gov hits me for near 30% of that at the end of the year.
So when guys look at you sideways and say 75.00 an hour and think you are crazy or guys(or possibly you yourself) say they won't charge that much because they themselves wouldn't or couldn't pay 75.00 an hour need take a reality check. They need understand 75.00 an hour gets an owner maybe 5.00 to 7.50 a man if everything goes right.
I charge material plus 20% to 30% on top of that depending on the material list complexity. In very few cases I might go as low as 10% if it's a small job and I know I won't make any mistakes. I never go back asking a client for more money so if I only go material plus 10% it can be tense. If I make a mistake I am out of luck..
Every area is different, a 4 year apprentice around here gets over 38.00 an hour. So pay yourself like a foreman that runs 4 man crews, that's where that 45.35 number comes from. But as I said, the owner must charge the client that 75.00 to be able to pay that 45.35 an hour.
I have the current union wages list somewhere if interested. For trim work like you are doing I would google the current local union carpentry wages list in your area and take a hard look. Then use those numbers as your min charge and charge more where you can using those numbers from a business owners perspective. Meaning look at it as you having to pay that wage to someone as opposed to receiving that wage from the client, even if you work alone. That's the key to staying in business, IMHO.
The first few years I just didn't charge enough, to where I now charge 5 times more(by hour the and for inlay pieces)than when I started and that's adjusted for inflation. If my wife was not working those first years I would of gone out of business, I was not making money. We actually did move from the home we were in because we could not afford it. That first day I charged 5 times more over night it blew my mind that people paid it and didn't even blink! I woke up fast after that. All that work I gave away and people actually complained at that rate! I have had ZERO complaints since 2006 when I increased my pricing 5 fold. Not sure what to take away from that other than people that want a deal are viscous and really want the job done for nothing. And clients willing to pay more realize they are getting quality and are appreciative of it.