If average household income increases by 10%, from $50,000 to $55,000 per year, the quantity of rooms demanded at the Triple Sevens from rooms per night to rooms per night. Therefore, the income elasticity of demand is , meaning that hotel rooms at the Triple Sevens are . If the price of a room at the Exhilaration were to decrease by 10%, from $250 to $225, while all other demand factors remain at their initial values, the quantity of rooms demanded at the Triple Sevens from rooms per night to rooms per night. Because the cross-price elasticity of demand is , hotel rooms at the Triple Sevens and hotel rooms at the Exhilaration are . Triple Sevens is debating decreasing the price of its rooms to $175 per night. Under the initial demand conditions, you can see that this would cause its total revenue to . Decreasing the price will always have this effect on revenue when Triple Sevens is operating on the portion of its demand curve.