I would suggest setting your prices 25% below the local establishment.
I have found that setting your prices too low can also be a deterrent. Most people live by the model of, if it sounds too good to be true, it probably is.
Meaning, people may think that you’re inexperienced and just looking to take on any job for practice.
So, HDMI replacements in my area go for $110-$120, so I charge $80 to $90 depending on the model.
I also let them know that it can be a couple of days since I have a substantial clientele which make you sound experienced. This way I can get it back to them earlier than they expected and beating their expectations in the process. NO Payment till repairs are completed, is a HUGE plus for me as well.