Can be a verb ('to take a cut') or a noun ('the cut taken'). Ubiquitous in gig-economy and platform-economy complaints — think Meituan, Didi, Taobao livestream MCNs.
grammar
抽 'to draw/extract' + 成 'portion/tenth' — literally 'to pull out a portion'. 成 here is the classical measure for tenths (三成 = 30%, 七成 = 70%).
