To find the ingredient amounts in bakers percent divide the weight of the ingredient by the weight of the flour and multiply by 100. This will give you the bakers percent for each ingredient. To work your formula in bakers percent do the following:
1) Decide how much flour (by weight) you want to use.
2) Using your calculator, enter the ingredient percent you want to find the weight for, then press "X" and now enter the flour weight and press the "%" key and read the weight for that ingredient in the display window.
Also, please keep in mind that the absorption of any flour can/will change to some extent from bag to bag, so don't be too hesitant about making slight absorption adjustments to your dough as this is entirely normal. Normally these variations in absorption are in the magnitude of about 2% of the total flour weight.
Tom Lehmann/The Dough Doctor