Calculate the percentage increase or decrease between two values — perfect for comparing metrics period over period.
% Change = ((New − Old) ÷ |Old|) × 100
New Value = Old Value × (1 + (Change% ÷ 100))
The Percentage Change Calculator finds the exact percentage increase or decrease between two numbers over time.
Enter your old metric (like last month's traffic) and your new metric. The calculator outputs the relative percentage change and absolute difference.
Marketing is all about period-over-period growth. This tool is essential for accurately reporting week-over-week or year-over-year performance to clients or stakeholders.
