在遠方相遇 (二手書交易資訊)

[{"sale_price":194,"disc":54,"prod_count":2,"sale_month":"201803","avg_price":97,"avg_disc":27},{"sale_price":910,"disc":253,"prod_count":5,"sale_month":"201804","avg_price":182,"avg_disc":51},{"sale_price":490,"disc":136,"prod_count":2,"sale_month":"201805","avg_price":245,"avg_disc":68}]