Michael Goddard 
All About Bakery Maths [EPUB ebook] 

This book is intended for professional bakers, pastry cooks, chefs, home cooks, and trainees and apprentices studying in the industry. It caters to passionate people at all stages of their careers and baking experiences. It is a practical reference book and learning volume that explains how to conduct the many calculations required to make good baked products and to work out figures relating to the business side of the industry. I hope you like what I believe to be an easy way of obtaining the knowledge you may need throughout your baking life. Happy calculating and baking!