Year Over Year Growth Calculator: Calculate YoY Growth Rate

Our Year Over Year Growth Calculator (also called a YoY growth calculator) helps businesses, investors, and analysts measure performance changes over consecutive years. Enter your prior year value and current year value to instantly calculate the year-over-year growth percentage and track whether your business, revenue, or metrics are growing, declining, or remaining flat.

Year Over Year (YoY) Growth measures the percentage change in a metric between two consecutive years. It's a key performance indicator (KPI) used by companies to track revenue growth, profit growth, user growth, and other important business metrics. YoY growth removes seasonal variations and provides a clear picture of actual business performance trends.

The Year Over Year Growth formula is:

YoY Growth % = ((Current Year Value - Prior Year Value) / Prior Year Value) × 100

This formula calculates the percentage change between two consecutive years, helping you understand the rate of growth or decline in any metric.

1. Enter the Prior Year Value (revenue, users, profit, etc. from the previous year).
2. Enter the Current Year Value (the same metric from the current year).
3. Click Calculate to see your YoY growth percentage.
4. Review the absolute change, growth rate, and trend analysis.
5. Use the step-by-step calculation to understand the math.

Here are common business scenarios where YoY growth calculation is critical:

• Revenue Growth: Track annual revenue increases. Example: $1,000,000 (2024) to $1,250,000 (2025) = 25% YoY growth
• User Growth: Monitor user base expansion. Example: 100,000 users (2024) to 135,000 users (2025) = 35% YoY growth
• Profit Growth: Measure profitability improvements. Example: $200,000 (2024) to $180,000 (2025) = -10% YoY decline
• Market Penetration: Calculate market share growth. Example: 5% (2024) to 7.2% (2025) = 44% YoY growth
• Employee Growth: Track team expansion. Example: 50 employees (2024) to 65 employees (2025) = 30% YoY growth

Year-over-year analysis is essential for business decision-making:

• Performance Tracking: Understand if your business is accelerating or decelerating
• Investor Confidence: Positive YoY growth attracts investors and increases valuation
• Competitive Analysis: Compare your YoY growth against industry benchmarks
• Planning Strategy: Use growth trends to forecast future performance and set goals
• Seasonal Adjustment: YoY removes seasonal effects, showing true business trends
• Compound Growth: Track cumulative growth across multiple years

Different time intervals reveal different insights:

• Year Over Year (YoY): Compares consecutive years; best for long-term trends and strategy
• Quarter Over Quarter (QoQ): Compares consecutive quarters; shows business momentum within a year
• Month Over Month (MoM): Compares consecutive months; reveals short-term fluctuations and immediate trends
• YoY is most reliable for avoiding seasonal bias and understanding true business growth trajectory

Understanding your YoY growth results:

• Positive YoY Growth (>0%): Your metric increased year-over-year. Higher percentages indicate stronger growth.
• Negative YoY Growth (<0%): Your metric declined year-over-year. Larger negative numbers indicate steeper declines.
• Zero Growth (0%): Your metric remained unchanged between years. Rare but indicates stagnation.
• Double-Digit Growth (>10%): Considered strong growth, typically attractive to investors
• Triple-Digit Growth (>100%): Exceptional growth, common in startups or rapid expansion phases
• Declining Growth: When YoY growth is positive but shrinking, it may indicate market saturation

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