After screwing up a few recipes due to miscalculations, I came up with the idea to have a smart recipe book to help me. Have the app do the calculations for you, all you have to do is tag ingredients as "Liquid" or "Flour" for the hydration calculator to start working. Download the app and avoid the work of thinking how much is 2% salt out of a 5982g dough.
Baker Percentage is the result of my time spent studying bread-baking and should evolve along with my skills.