99 yuan. According to the information of the official shopping platform in JD.COM, the rules for purchasing goods in JD.COM are: if the order amount is below 49 yuan, the basic freight will be charged according to 8 yuan, and the continuous freight will not be charged. 49 yuan ≤ order amount < 99 yuan, basic freight will be charged according to 6 yuan, and continuous freight will not be charged. If the order amount is greater than or equal to 99 yuan, the basic freight is free, and the continuous freight is not charged.