To calculate price elasticity using me point method, you are supposed to use the percentage change in both the quantity and price. The formula is as below;
% change in Quantity=(Q2+Q1)21Q2−Q1×100
=(3000+2800)213000−2800×100
=2900200×100=6.9%
% Change in Price=(P2+P1)21P2−P1×100
=(60+70)2160−70×100
=65−10×100=−15.4%
Price Elasticity =−15.46.9
= -0.45
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