1. Calculating the price elasticity of demand: A step-by-step guide Suppose that during the past year, the price of a laptop computer fell from $2,350 to $1,930. During the same time period, consumer sales increased from 436,000 to 537,000 laptops. 4 Calculate the price elasticity of demand between these two price-quantity combinations by using the following steps. After each step, complete the relevant part of the table with the appropriate answers. Percentage Change (in decimals) Absolute Change Average Quantity Demanded