In the past I have done some commercial photography for a health club that my family belongs to. In the next month they are going to re shoot all of the photography for future advertising and brochures.
I was among 5 photographers, and they asked us to make a bid for a two day shoot.
I made what I thought was a competitive bid of $800/day plus expenses. They are taking care of all of the post processing, so I didn't need to charge for it. To my surprise, I got a call immediately asking why my bid was so low. They were worried that low money = low results.
Lesson learned = you must have confidence in bidding according to the market. Luckily, they still like my portfolio and I still in the running vs. another photographer in the last cut.
Have faith in yourself!!! My wife laughed because she has told me that for a long time.
Loren