Tracing back to the origin of capitalization, Zhu Yuanzhang issued a decree because of a major corruption case "Guo Huan case" at that time, explicitly requiring the figures in the accounts to be rectified. "One, two, three, four, five, six, seven, eight, nine, ten, hundred, thousand" was changed to "one, two, three, four, five, land, seven, eight, nine, pick up, hundred, thousand" and other complex Chinese characters, and the method is still in use today.
Problems needing attention in RMB capitalization
1. In Chinese measure words, the word "Zheng" (or "Zheng") should be written after the word "Yuan", and the word "Zheng" (or "Zheng") may not be written after the word "Jiao". There are "points" in the number of words, and the word "all" (or "positive") is not written after "points".
2. In Chinese, the word "RMB" should be marked before the amount in words number, and the word "whole" (or "positive") should not be written after the amount in words number.