The weekly sales of a smart home assistant hub fall from 25,000 units to 15,000 units when the subscription price of a compatible automation service rises by 16%.
In relation to the price of the automation service, what is the cross elasticity of demand (XED) for the smart home assistant hub?
−0.4-0.4−0.4
+0.4+0.4+0.4
−2.5-2.5−2.5
+2.5+2.5+2.5
