Wall-E wrote:
Could you finish the calculations, please?
You've mixed consumables with capital items and overhead.
This is how I worked out my pricing.
Monthly Business Cost List:
 Cell Phone: $59.00
 Equipment purchases: $500
 Photo gallery: $15
 Hosting: $6.99
 Marketing: $100
 Business cards: $10
Total: $693
I used one session per week as my goal because I want to be profitable but I don't want to be unrealisic and set my booking goal to high.
$693 and divide that into 4 (total sessions per month) = $173 for each session.
Time Spent List:
 30 minutes for consult and email reminders
 30 for location scouting
 1 hour for shooting
 3 hours for editing
 1 hour for gallery preview with client and ordering
Total: 6 hours per client
I charge $30 per hour.
My formula:
Time x your hourly cost = total personal pay + Business cost per month / amount of monthly sessions = total business cost per session = Total Session Price (not including prints)
6 hrs x $30.00 = $180
$693 business cost / 4 session minimum = $173
Total = $353 per session
I charge $350 for a session fee with a $700 print order minimum ($150 of the session fee is credited back to my client to be used toward their prints costs).
I now have studio rent and all the utilities and expenses that go along with, but I have been booking more than 1 session a week so I have not had the need to revamp my prices.