Same-Store Sales (SSS)
Year-over-year sales growth for stores open at least 12 months
FORMULA
SSS = ((Current Year Same-Store Sales - Prior Year Same-Store Sales) / Prior Year Sales) × 100
Alternate Calculations
Comp Sales
Year-over-Year Comparable Store Growth %What is Same-Store Sales?
Same-Store Sales (SSS) measures year-over-year revenue growth for retail locations that have been open for at least 12 months, excluding new store openings. This metric isolates organic growth from expansion effects.
SSS growth indicates improving business performance and customer demand. Negative SSS signals declining same-location revenue and potential market challenges.
Chart
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Sample Data
| month | current | prior | growth |
|---|---|---|---|
| Jan | 2,450,000 | 2,200,000 | 11.4 |
| Feb | 2,680,000 | 2,420,000 | 10.7 |
| Mar | 2,950,000 | 2,650,000 | 11.3 |
| Apr | 2,720,000 | 2,480,000 | 9.7 |
| May | 2,890,000 | 2,650,000 | 9.1 |
| Jun | 3,120,000 | 2,850,000 | 9.5 |
Required Data Columns
current_salesprior_salesstore_count