Year Over Year Growth Calculator YoY growth rate. Previous period Current period YoY growth (%) 20 Step-by-step with your numbers: 1. Values used: 2. Previous period = 1,000 3. Current period = 1,200 4. YoY growth = 20% Did we solve your problem today? 👍 Yes 👎 No Thanks for the feedback! Year-over-year percentage change. FAQ Quarter-over-quarter? Same formula — just use two periods. Related calculators CAGR Calculator Find the compound annual growth rate. Percentage Change Calculator Find the percent increase or decrease between two values. GDP Growth Rate Calculator Find the GDP growth rate between two periods.