I can send you a calculator if you like, just PM me with an email address. The calculator is a good ball park estimator.
Calculating an end result is a bit complicated.
The only true way to know the end result of your feed blend is to have each batch tested. That's why commercial bags post minimum and maximum values, so as long as they are in the right ball park they are fine with their label. Also, just a note about flax, it brings a lot more to the table if its ground first.
