equations Flashcards
1
Q
calculate percentage change
A
(new value - old value) / old value x 100 = %change
2
Q
calculate PED
A
price elasticity of demand
% change of quantity demanded / % change in price x 100 = PED
3
Q
calculate YED
A
income elasticity of demand
% change in quantity demanded / % change in income x 100 = YED