[{"sale_price":500,"disc":"71","prod_count":1,"sale_month":"202009","avg_price":500,"avg_disc":71},{"sale_price":500,"disc":"71","prod_count":1,"sale_month":"202010","avg_price":500,"avg_disc":71},{"sale_price":500,"disc":"71","prod_count":1,"sale_month":"202011","avg_price":500,"avg_disc":71},{"sale_price":395,"disc":"56","prod_count":1,"sale_month":"202102","avg_price":395,"avg_disc":56}]
最近成交價(折扣)