Scott - This is how our current calendars are setup. The artist picks how much commission they want to make. The default is $6 per calendar, but this can be raised or lowered to effect the retail price of the calendar. The price can be changed at the bottom of the page of your calendar builder.
It might be a good idea for the artist to be able to decide commissions on calendars. Perhaps if we took less and made the product more affordable to the community we would sell more and consequently spread our work around more. Thoughts?