Percent sign, symbol%. A symbol whose denominator is 100.
Meaning: divide an integer into 100 parts, and the number of parts, that is, when the denominator of a fraction is 100, can also be written as x/ 100.
Conversion between percentages and decimals
(1) Decimal system: Delete the percent sign and move the decimal point to the left by two places. For example, 75% can be converted into 0.75.
(2) Decimal percentage: add a percent sign and move the decimal point to the right by two places. For example, 0.62 can be converted into 62%.