๐ The Math of Comparison
Percentage change is used all the time in finance, fitness, and news. It tells you the relative difference between an old value and a new value. Here is the magic formula: Percent Change = [ (New - Old) / |Old| ] ร 100.
๐ Price Increase Example
If your favorite coffee went from $4.00 to $4.50:
- (4.5 - 4.0) = 0.5
- 0.5 / 4.0 = 0.125
- 0.125 ร 100 = 12.5% Increase โ
๐ Weight Loss Example
If you started at 200 lbs and are now 185 lbs:
- (185 - 200) = -15
- -15 / 200 = -0.075
- -0.075 ร 100 = 7.5% Decrease ๐
๐ก Pro Tip: Always remember to divide by the original number (the Old value), not the new one!
Use Percentage Change Calculator โ