# Can I express the numbers at more than one decimal point using 成?

I know that if you want to express "X-tenth(s)", you can use 成. For example:

However, these only express the figure at one decimal point. If you want to express any figure at two or more decimal points, can you still use 成? For example:

Or if you can't, how can you express the figure usually?

• ０。５５：零点五五， ５５％:百分之五十五，seems to exhaust possibilities, see grammars on numerals Sep 27, 2017 at 10:06

Well, you could say 五成五 for 0.55 or 55%. 99% could be 九成九.

For example, 九成九的人会参加这会议, meaning 99% of people will attend the meeting.

Usually, people won't put that accurate. They may just say 大约五成, meaning 50% or so. But 几成几 is a normal expression.

• Thanks. So how about three decimal points (e.g. 0.938)? Sep 27, 2017 at 10:20
• No one would use three decimal points for this kind of purpose. To be more precise, you might have to use percentage or just 0.xxxxx.
– dan
Sep 27, 2017 at 10:23
• OK, then in that case is the expression always in arabic numerals? Or can you also express it in Chinese characters? Sep 27, 2017 at 10:25
• Or, you could joke on it by saying 九成三点八 for 0.938. lol. People would understand you。
– dan
Sep 27, 2017 at 10:25
• It would look awkward when 0.921 written in Chinese characters.
– dan
Sep 27, 2017 at 10:32