shìyījiān zài nǎlǐ?
Where is the fitting room?
这个多少钱?
How much does it cost?
这个 (zhège) means 'this', 多少 (duōshao) means 'how many' or 'how much', and 钱 (qián) means 'money'. Together it's a direct question: 'This how much money?'
这个价格是多少?
zhège jiàgé shì duōshao?
What is the price of this? — More formal.
这多少钱啊?
zhè duōshao a?
How much is this, huh? — Colloquial variant.
这个多少钱?
zhège duōshao qián?
How much does this cost?
这个价格是五十块。
zhège jiàgé shì wǔshí kuài.
The price is fifty yuan.
Appropriate
Avoid when
You say 这个多少钱? (zhège duōshao qián?). It literally means 'This how much money?'
It is pronounced zhège duōshao qián? The tones are: zhè (4th tone), ge (neutral), duō (1st tone), shao (neutral), qián (2nd tone).
Use it when you want to ask the price of something you can point to, like in a shop or market. It's polite and neutral.
Tomyo
Remember 这个多少钱? and hundreds of other phrases with smart reviews, audio and examples.