Percentage in Mathematics

Percentage is a way of expressing a number as a fraction of 100.
It is denoted using the percent symbol (%).  The term comes from the Latin "per centum," meaning "by the hundred."
Percentages are used to compare ratios, show proportions, and express increases or decreases in quantity.
They are widely used in everyday life—like in discounts, interest rates, exam scores, and data analysis.

Key Concepts:

• 1% = 1 out of 100
• To find a percentage of a number:
   Percentage of a number = (Percentage × Number) ÷ 100
• To convert a percentage to a decimal: divide by 100.
   Example: 25% = 0.25

Common Applications:

• Calculating discounts and taxes
• Finding profit or loss percentage
• Comparing test scores or data
• Interest rates in finance