The 1. percentage cannot have a company name, but it can have a company name when the score represents a specific number.

2. Percentages can only represent fractions, not specific quantities, so units cannot be taken. The formation of the concept of percentage should be introduced with examples in students' real life or industrial and agricultural production.

3. Percentages are usually not expressed in fractional form, but in percent sign "%".

4. The numerator of a fraction can only be a natural number, and its expressions include true fraction, false fraction and band fraction. The calculation result is not the simplest score, but the false score is converted into a band score.

5. Meaning of percentage: The number indicating that one number is the percentage of another number is called percentage, also called percentage or percentage. Percentages are usually not written in the form of fractions, but expressed in concrete "%". Generally, the percentage only indicates the multiple relationship between two quantitative relationships, and cannot be related to the company name.