Let me see if I can explain what I am looking for. Is there a calculator that works backwards from all the other calculators? Meaning with the calculator I am currently using i plug in i want, 7 percent flavor A and seven percent B it will tell me how many ml of each flavoring to add. I want it the opposite, better yet work both ways. I am new to diy and I find that i will mix a batch and think to myself I want a little more flavor A or this could use a dash of C. I think it would be nice for a calculator to tell me the new percentages in my mix. I suppose I could just do the math myself but im kind of lazy.