Here’s a clear, professional post you can use for LinkedIn, a blog, or a social media update:
📌 Example: If January’s average sales are 120 and the overall monthly average is 100, the seasonal index = 1.2 (20% above average). how to find seasonal index
Collect at least 3–5 years of data for the same period (e.g., monthly or quarterly). Here’s a clear, professional post you can use