Coan Company recently changed the selling price of one of its products. Data concerning sales for comparable periods before and after the price change are presented below. 
The product's variable cost is $21.40 per unit.
-The product's price elasticity of demand as defined in the text is closest to:
Definitions:
Trial
A formal examination of evidence by a judge, and typically a jury, in order to decide guilt in a case of criminal or civil proceedings.
Linear Loads
A type of electrical load where the current is directly proportional to the voltage, resulting in a constant load impedance throughout the operation.
Harmonics
Higher frequency signals that are integer multiples of a fundamental frequency, which can distort waveforms in electrical systems.
Current
The flow of electric charge through a conductor or space, measured in amperes.
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