To Gain and to Give: Hilchot Tzedakah, Day 12
Frequently, the calculations involved in separating ma’aser can be intricate and confusing. As such, it is highly recommended that one keep a special notebook or binder where they can record all of their ma’aser calculations. The details of how ma’aser is calculated will be explained below.
אהבת חסד פ"כ