不順意的日子，順心過 (二手書交易資訊)

[{"sale_price":208,"disc":"58","prod_count":1,"sale_month":"202010","avg_price":208,"avg_disc":58},{"sale_price":766,"disc":213,"prod_count":3,"sale_month":"202011","avg_price":255,"avg_disc":71},{"sale_price":778,"disc":217,"prod_count":3,"sale_month":"202012","avg_price":259,"avg_disc":72},{"sale_price":210,"disc":"58","prod_count":1,"sale_month":"202101","avg_price":210,"avg_disc":58}]