huê-khiò回扣

commission

commission; brokerage fee; rebate (return of part of an amount already paid); kickback (covert, often illegal, payment)

English Wiktionary, “回扣” (CC BY-SA 4.0) — https://en.wiktionary.org/wiki/%E5%9B%9E%E6%89%A3 · confidence: Medium (Wiktionary, Hokkien)