當然有用，勞力成本隻占總成本的一小部分，通常都在20%以下。金融，運輸，廣告，原料各個成本比例相當高。加50%足夠

來源: 咲媱於 2025-09-03 14:52:52 [博客] [舊帖] [給我悄悄話] 本文已被閱讀：次

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