This document contains information about calculating trade discounts, including: - Single trade discounts are calculated using formulas to find the trade discount amount and net price given the list price and trade discount rate. - Chain discounts use the net price equivalent rate and single equivalent discount rate to calculate the net price and trade discount amount from the list price when multiple discount rates are given. - Examples are provided to demonstrate calculating single and chain trade discounts along with finding the list price when the net price and trade discount rate are known.