Price waterfall analysis is _____. Group of answer choices a method that compares changes in price against changes in volume and its affect on customer purchasing behavior a method that correlates price and the cost-to-serve individual customers to identify those customers who can and should be charged more for a product a method that compares actual purchase price against fair price among customers to determine those customers who are paying too much or too little for a product a method of comparing an invoice to all sources of profit leakage to determine the revenue that is actually earned from a transaction