In mathematics, a percentage is a way of expressing a number as a fraction of 100 (per cent meaning "per hundred"). It is often denoted using the percent sign, "%", or the abbreviation "pct". For example, 45% (read as "forty-five percent") is equal to 45 / 100, or 0.45.It can be use as a increase or decrease for salary. It is also another expression for decimals and fractions.
Done by: Teoh Yun, Benz Kew , Teo Yi Lin