thanks, all is working like it should, appreciate the help

I set up the OG first, it won't let me do percentages until then. Nothing happens as you can see here. Maybe I'm not doing it right. I tried saving but no fermentables. as you can see, nothing has changed for weight.

My percentages have changed but now won't let me change them and recalculate. I tried to do an additional formula, went and added FG and started entering fermentables, no weight is being added to item at any point of adding ingredients. Is there something I'm doing wrong? It worked before...

I put a recipe in and got my grain bill and such but it seemed really high. After going through the recipe, I noticed I did not change the efficiency of my brew. How can I have those numbers change to correspond to new efficiency without having to go through entering all the information again...