I guess people may know what you mean.But i think if you want to ask price ,to say这多少钱is much better

1服务员，这个怎么卖的？ 2老板，这个怎么卖的？ 3老板，这个多少钱一斤？ 4老板，这个多少钱一袋？ 5老板，这个多少钱一箱？ 6老板，这个多少钱一包？ 7老板，这个多少钱一瓶？ 8老板，苹果多少钱一斤？ 9老板，苹果怎么卖的？

sellers are able to know what you mean in most situation. but a more accurate way is: 这个多少钱/这个卖多少/这个价格是多少

你好，苏文丽！ You'd need to ask 这多少钱？ if you want to know its price. Literally translated, this says "this more less money" a.k.a. "this how much." That's why it's common for Chinese who don't speak a lot of English to ask "This how much?"

IF you want to know the name of the goods, you should ask: 这是什么？ If you want to know the price of the goods, you should ask: 这个多少钱？ MY WHATSAPP is +8618538812246 we can learn the language from each other haha