1600. Zhou Dasheng's points for buying Kejin are calculated according to 10 yuan and 1 minute. Therefore, if you spend 16000 yuan, you can get 1600 points, in which the points can be deducted from cash and every 50 points can be deducted from 1 yuan. Moreover, all customers who spend more than 65,438+0,000 yuan at Chow Tai Sang Jewelry Counter have the right to apply for Chow Tai Sang Jewelry Donor Card.