The cross price elasticity of biscotti demand with respect to the price of Lattes is -1.5 (Lattes and biscotti are complementary goods).

The cross price elasticity of biscotti demand with respect to the price of Lattes is -1.5 (Lattes and biscotti are complementary goods). If the price of Lattes increases 20% what would you expect to happen to biscotti demand?