I don't know anything about
pancrecarb, infact have never heard of it.
So, I can't give specific advise for that. Looking on the pancrecarb website, they use Creon as an example of other enzymes on there, so I am guessing they are pretty much the same.
The enzyme I am on-Creon 10,000, can be very hit and miss, and takes a lot of practice too get right. Some people with CF, with the same height and weight as me, may find that 2 creon per meal is enough, with me I have too have 12-15 with a meal for it too work.
Different bodies, with different genes and genetic mutations, may require different amounts, and there is no way too say how many your daughter should be taking.
The best thing to do, is if you're concerned your daughter isn't getting enough enzymes, either try her on one more than normal for a day to if it makes a difference, or ask her dietician what she suggests. If her stools are just loose, it won't take much adjustment, however if they are also greasy, yellow or orange then there may need too be a slightly bigger change.
As your daughter grows older, you will probably find that her enzymes will take a bit of adusting too suit her needs.
Hope this helps, and that you manage too get the enzymes sorted soon.