One can dial it right down to the penny!
I have set myself up just you as would do with any home based business. With being legal, paperwork is different than if your on the sly. I have records I keep which allow me to see exactly what is most benifical for me and my clients and can make recommendations on strains that cost less to produce if pricing is an issue. I do not take requests on strains, this allows me to have a solid pricing structure, if I know how my plants react I can be a better grower. I send a sample and if you like great, if not, your on the search again. Generally I supply the Health Canada's agreed amount at a set rate then if any additional is requested another price applies (agreed on in a eariler conversation)
My pricing is not meant for me to get rich but I have my own issues to deal with also.
I am ready for the tax man...I got some huge set-up costs I wanna right off! lol