to be discounted many times

喻指事情办得很不合人的本意（多指规模、数目被缩小）to deliver less of something than intended

• 人民银行各级分行对总行浮动幅度进行七折八扣。

  Branches of the People's Bank at all levels have reduced the head office's floating range.

• 钻石若回卖给商家必定会被七折八扣，损失很多。

  If diamonds are sold back to sellers they surely sell for a much lower price, losing a lot of money.