Recall the steps to find the net price given the list price and trade discount rates using the complement method. 1. Find the complement of the trade discount rates in the series by subtracting each from 100% and converting them to decimal form. 2. Calculate the net price factor of the series by multiplying all the decimal values together. 3. The net price is the product of the list price and the net price factor The given trade discounts of 45/30/5 represent individual discounts of 45%, 30%, and 5%, respectively. First subtract each trade discount from 100% to find the complement, then convert to decimal form. Find the complement of the 45% trade discount. complement 100%-trade discount 100% 45% Converting this percentage to a decimal gives Find the complement of the 30% trade discount. complement 100%-trade discount -100%-30% Converting this percentage to a decimal gives Find the complement of the 5% trade discount. complement 100% trade discount -100%-5% Converting this percentage to a decimal gives