A store recently marked a hydration belt on sale, lowering the price by 40% from $20 to $12. The store also sells a hydration bottle, which is similar to the belt except that runners can hold it in their hands with a strap while running. When the store lowered the price of the hydration belt, the quantity of hydration bottles sold decreased by 28%. Using the cross-price elasticity formula, the cross-price elasticity is __________ and the goods are __________.