Percentage = (Part ÷ Whole) × 100%
For example, if you scored 45 points out of a possible 60 on a test, your percentage score would be:
(45 ÷ 60) × 100% = 75%
The same formula works for discounts or growth rates. If an item was originally $200 and is now $150, the percentage decrease is:
((200 - 150) ÷ 200) × 100% = 25%
In summary, just identify the "part" and the "whole," plug them into the formula, and you have your percentage. Whether it's for sales, grades, or data analysis, the method is always the same.
Percentages make numbers easier to understand. Master this simple skill and you'll find it useful everywhere!