Advice on commercial pricing - Tough one

So I just got two calls for two distinct assignments neither of which I have done before (not the pics but the job) :

1. Newly founded organization wants pictures of the 7 people on the board/aka the founders as a group and as well indivdual portraits (since the studio will be set up anyways). So 3 group shots and I'm guessing 2-3 shots individually each. They will be using the pics to promote their organization and themseleves - advertising, website,linked-in etc.

2. Pretty much the same thing but in this case it's a medical clinic wanting pictures with their staff for promoting the clinic : calendars, flyers etc. commercial unlimited use.

I usually do weddings , baptisms and some family portraits and have never done commercial work. I charge a couple around 250$-300$ for a 1- 1 and 1/2 hour session at their place with around 25 fully edited pictures at the end of it on a cd, no prints.

So how does commercial work....work?

I'm based in Montreal if the pricing is market sensitive.

Thank you in advance for your anwsers,

Mihai Muntean Photographyarcreation.ca