This is a neat trick to be able to compare recipes of pizza dough. After all, dough is only made up of 4 main ingredients – flour, water, yeast and salt, with the addition of sugar and oil in some recipes. This means that you’ve got to get the quantities right, as small differences can make big changes. Bakers percentages work by finding the percentages of ingredients compared to the total amount of flour (flour is always 100%) e.g. Flour 100%, then water 65%, salt 2%, yeast 1%.