implest question: what does "profit margin" mean And what does "net profit" meanCan you say itAfter finishing, he raised his chin and looked at Zhao Ping'an, growing increasingly contemptuous."Uh..."W...Chapter 41

Tianhai Hotel, Western Restaurant.up: "This uncultured bastard is courting death!"Zhao Zhenhai clenched his fists, his knuckles cracking. He gritted his teeth and said through clenched jaw, "Where is Zhao Ping'an now!"A servant replie...