How to calculate the old change in the old change 2022-09-13 Jewelry, Luxury & Watches The gold I bought at the department store last year is about 368 per grams, about 3 grams, and the new 4g ring is changed to the old. Now the gold is about 280 grams. Previous articleIdentify the price of Lao Fengxiang's 18K gold diamond ring.Next articleI heard that the owner of Shenzhen Jinding Security Technology Consulting Co., Ltd. was arrested?