Investors buy a studio apartment for $180,000. Of this​ amount, they have a down payment of $18,000. Their down payment is what percent of the purchase​ price? What percent of the purchase price would a ​$9,000 down payment​ be? Their down payment is enter your response here​% of the purchase price. ​(Type a whole​ number.) A ​$9,000 down payment would be enter your response here​% of the purchase price. ​(Type a whole​ number.)