According to a survey by the Economic Daily News, sales of packed lunches in Taiwan's five biggest convenience stores total up to 100 million units per annum. Of this, 7-Eleven makes up over 80 %, with the other four chains selling a total of about of 20 million units annually.
據經濟日報的調查顯示，台灣五大便利商店販售的便當，估計一年高達一億多個，其中統一超商就占了八成以上，其他四家超商全年約售出二千萬個。