How much is the change of Nanjing 1000 Su Guo card?

If you can recycle Su Guo cards, you can recycle them at Peking University. Peking University is a very formal recycling platform with reasonable price, quick review and complete qualifications. Anyone who wants to recycle shopping cards or other cards can do so in Peking University. So, how much of Guo Ka's 1000 yuan has been recovered? At Peking University, the recycling price of 1000 Guo gift card is 890 yuan.