A mark-up (also written markup) is the extra money added on top of what something cost, especially from the price a shop pays to the price it sells at. If a shop buys a shirt for $10 and sells it for $15, the mark-up is that extra $5 — though actually people are loose about whether they mean the dollar gap or a percentage, and both get called mark-up.

A mark-up（also written markup也寫成 markup）is是 on top of what something cost在成本之上 added加上去 the extra money的那筆額外的錢，especially from the price a shop pays尤其是從店家付的進價 to the price it sells at到它賣出的售價。 If如果 a shop一家店 buys a shirt for $10用 10 元買進一件襯衫，and sells it for $15再用 15 元賣出，the mark-up這裡的 mark-up is就是 that extra $5多出來的那 5 元——though actually不過其實 people人們 whether they mean the dollar gap or a percentage到底指金額差還是百分比 are loose about講得很隨便，and both而兩種 get called mark-up都被叫作 mark-up。

It is shop and business language. The two-word verb is mark up: to put that higher price on.

It它 is是 shop and business language商店和生意場上的語言。 The two-word verb兩個字的動詞 is是 mark up：to put that higher price on把那個較高的價格標上去。

This is the money meaning. The same spelling markup also lives in computers and publishing (marks you add to text, like HTML). That is a different job for the word, not this one.

This這 is是 the money meaning錢的那個意思。 The same spelling markup同樣拼法的 markup also也 lives in computers and publishing活在電腦和出版界（marks you add to text你加在文字上的標記，like HTML像 HTML）。 That那 is是 for the word這個字的 a different job另一份工作，not this one不是這裡講的這個。