The term "percent" is derived from the Latin word "per centum," which means "per hundred. Percentage is a way of expressing a number as a fraction of 100..
A percentage is a ratio that compares a number to 100. For example, if a quantity is expressed as 50%, this means that the quantity is equal to 50 parts out of 100. Another way to understand it is that 50% is equivalent to the fraction 0.5, which is equal to 50/100.
In mathematics, there are several formulas and methods for calculating percentages, such as finding the percentage increase or decrease of a number, converting a fraction or decimal to a percentage, or finding the original number given the percentage.
That’s why Percentage forms a crucial part of the Quantitative Aptitude syllabus of various competitive exams like- RBI Grade B, SEBI Grade A, NABARD Grade A, ECGC PO, IBPS PO, IBPS SO, SBI PO, SBI Clerk, etc. Furthermore, MCQ questions based on Percentage are also asked in Data Interpretation, which forms a major part of aforementioned exams. Therefore, you need to prepare this topic properly to ace this section.