Excuse me, what are the meanings of "one point" and "four points" in Chinese medicine prescriptions?

The measurement units of traditional Chinese medicine are different from ancient times to modern times. Since the Ming and Qing Dynasties, the decimal system of 16 has been widely adopted, that is, 1 kg = 16 = 160 yuan. At present, the metric system is adopted in the measurement of Chinese crude drugs in China, that is, 1 kg = 1000 g. In order to facilitate the conversion of prescriptions and prescriptions, especially the measurement of ancient prescriptions, it is usually converted into approximate values according to regulations, that is, 1 two (16) 30g, 1 money 3g. ..