How to calculate the percentage

The calculation method of percentage is: quantity ÷ total × 100, and the result should be expressed as%.

I. Definition of percentage:

Percentage is also called percentage or percentage. When the percentage is converted to decimal, the percent sign is deleted and the decimal point moves two places to the left. When decimals are converted to percentages: Add a percent sign and move the decimal point to the right by two places.

Second, the concept of percentage:

Percent is a special fraction, the denominator is 100 and the numerator is not an integer. Percent indicates that one number is a percentage of another number, indicating a ratio. Percent is a way to express the numerical value of proportion, ratio or fraction, such as 82% for 82%, or 82/ 100, 0.82. For example, 35 apples in 100 are red. The percentage of red apples is 35%.

Third, the application of percentage:

1. The weather forecast program on TV will broadcast the weather situation and precipitation probability of that night and tomorrow day every day, prompting everyone to make preparations in advance, just like the precipitation probability of tonight is 20%, and there will be five to six winds during the day tomorrow, and the precipitation probability is 10%. Add clothes sooner or later. 20% and 10% are clear and concise.

2, mobile phones, a variety of styles. Glenn Wilson, a psychologist at Royal College, University of London, proved that reading short messages with his head down all the time will lead to low work efficiency and slow down the brain reaction ability of staff, and the IQ of people who read short messages often will drop by 10%, which once again proved in percentage form that although mobile phones provide convenience for people, they are very harmful to human health.

Fourth, expand small knowledge:

Percentage is widely used in industrial and agricultural production, science and technology and various experiments. Especially the percentage, is often used for investigation, statistics, analysis and comparison. Percent (symbol%) is a way to express the numerical value of a proportion, ratio or fraction, using 100 as the denominator.

Percentage's English name is percent, so it is also translated into Eight Immortals. Percent comes from the Latin per centum, where per means "every" and centum means "hundred".