OP
Octopus
Pricing is confusing?
Don't talk squit man!
Pricing is easy and God knows there's enough posts on this forum about it.
What you need to work out is how much it costs you per hour/day/month/year to keep your business running. This will be different for everyone, even for two sparks living in the same town.
What are your overheads?
What do you need to earn to pay your bills?
Add these two figures together.
How many hours will you work per year REALISTICALLY?
Divide one by the other and you have your break even hourly rate. You CANNOT charge less than this or you will become bankrupt, end of story.
Now look at the job you're quoting. How long will it take? 2, 3, 4 days?
How many hours will you work per day? 6,8, more?
Tally up all the materials needed for said job.
Add the two together and add some profit, that's your quote, easy as pie.
When you quote work you are guestimating, you may get it right, you may get it wrong. The trick is to get more right than wrong.
YOU WILL NOT GET THEM ALL RIGHT!
And don't forget to allow for tax and NI too!