好餓的毛毛蟲 (二手書交易資訊)

[{"sale_price":1167,"disc":388,"prod_count":8,"sale_month":"202009","avg_price":145,"avg_disc":49},{"sale_price":795,"disc":264,"prod_count":6,"sale_month":"202010","avg_price":132,"avg_disc":44},{"sale_price":778,"disc":258,"prod_count":4,"sale_month":"202011","avg_price":194,"avg_disc":65},{"sale_price":397,"disc":132,"prod_count":2,"sale_month":"202012","avg_price":198,"avg_disc":66},{"sale_price":1471,"disc":489,"prod_count":8,"sale_month":"202101","avg_price":183,"avg_disc":61},{"sale_price":270,"disc":90,"prod_count":2,"sale_month":"202102","avg_price":135,"avg_disc":45}]