The Manager of the Kendall Square Bertucci's Conducted a Pricing

Multiple Choice

The manager of the Kendall Square Bertucci's conducted a pricing experiment in August 2016. For the week of August 14-20, 2016, he lowered the price of Bertucci's signature pizza, the small Bertucci, from $13.00 to $11.00. As a result, weekly sales of the small Bertucci rose from 15,000 to 21,000 (see the table below) .

The manager knows his costs did not change from week to week and is confident there were no other external shocks to demand during this time.
-Using the arc or midpoint elasticity formula,the price elasticity of demand for the small Bertucci pizza at the Kendall Square Bertucci's restaurant is ________.

A) 3
B) 2.6
C) 2
D) 1.57