Baker's % is a method of calculating baking ingredients as a ratio in terms of the weight of a recipe's base ingredient (often it is flour). Baker's Percentage is not the same as True Percent. In True Percent, the total of the ingredients always adds up to 100%. In Baker's Percentage, the weight of the base ingredient (usually flour) in the formula equals 100%. All the other ingredients are calculated in proportion to the weight of flour. The mathematical equation is as follows: (Weight of ingredient/weight of total flour) x 100 = ingredient %.