Percent change measures the relative difference between an old value and a new value, expressed as a percentage. It can show either an increase or decrease depending on whether the new value is higher or lower than the original.
This calculation is widely used in finance, economics, statistics, and everyday life to track how values change over time.
Follow these steps to calculate the percent change between two values:
A positive result indicates an increase, while a negative result indicates a decrease.
Problem: A stock price changed from $50 to $65. What is the percent change?
Solution:
Percent change compares a new value to an original value, showing direction (increase/decrease). Percent difference compares two values without considering which came first.
Yes! A negative percent change indicates a decrease from the original value. The sign tells you the direction of change.
Use percent change when tracking changes over time, like price changes, population growth, or investment returns where you have a clear "before" and "after" value.