Explore the world of reverse percentages through practical scenarios, mastering the Y is P% of what? concept to uncover original values in real-life situations.

**Example 1: Interest Earned: **-
You invest $5,000 in a savings account that offers a 3% annual interest rate. After a year, how much interest did you earn?

**Example 2: Discount Calculation:**-
You find a shirt on sale for $30, marked down by 25%. What was the original price of the shirt?

**Example 3: Tax Calculation:**-
You purchase an item for $150, and the sales tax is 8%. What was the price of the item before tax?