What is the profit of wedding photos? Can you elaborate on it?

I work in a wedding photo studio, doing photo processing ... I ... we ... have ... all kinds ... all kinds ... different ... same price ... place ... setting ... breakfast (or lunch, evening) meals ... Take one thousand as an example ... 1 ... Count as potential cost 4. Live shooting. Gasoline. 10 yuan (driving when going out) water money (18) going out to drink water (four staff members and a couple) 5. The land rent of the photo studio .. gold (our room ... the price ... is very convenient ... and it's also 4 thousand a month.