Are you mixing points and points plus? Don't use the 40 cal formula you are using. The new plan has 4 variables - carbs, fiber, fat and protein. Also, you get freebies of fruits and most vegetables - zero points. And you have 49 weekly points and activity points to add in if you need them. It's not a hard plan to learn, but it is complex. I would strongly recommend going to a nearby meeting location and signing up, at least long enough to learn the ropes.
Edited to add: Lovely wrote a great FAQ on the WW Points Plus Plan here:
http://www.3fatchicks.com/forum/weig...etime-faq.html
It's very informative!