這個設計好在哪? 看懂平面, 網頁及廣告設計的奧秘：設計人一定要答對的 55 個問題 (二手書交易資訊)

[{"sale_price":83,"disc":"30","prod_count":1,"sale_month":"202107","avg_price":83,"avg_disc":30},{"sale_price":220,"disc":78,"prod_count":2,"sale_month":"202108","avg_price":110,"avg_disc":39},{"sale_price":471,"disc":169,"prod_count":4,"sale_month":"202109","avg_price":117,"avg_disc":42},{"sale_price":181,"disc":65,"prod_count":2,"sale_month":"202110","avg_price":90,"avg_disc":33},{"sale_price":238,"disc":85,"prod_count":3,"sale_month":"202111","avg_price":79,"avg_disc":28},{"sale_price":144,"disc":51,"prod_count":2,"sale_month":"202112","avg_price":72,"avg_disc":26},{"sale_price":300,"disc":107,"prod_count":3,"sale_month":"202201","avg_price":100,"avg_disc":36}]