Input on Price

Hi Folks - I’m primarily a furniture maker and I just finished these 2 “built-in” units: a tv unit and a bookcase. I’m still new to owning and operating my business and I’m trying to work out pricing. I think my main problem is that I tend to underestimate my labor time.

I priced these 2 units at $3700 + tax (including installation) and I have a feeling this might have been low considering the amount of work. Or maybe I’m just very slow! I’m in the Los Angeles area (so HCOL). What would you charge?

TIA