diff --git a/services/dataProcessor.ts b/services/dataProcessor.ts
index cb501eb..c2ae5fe 100644
--- a/services/dataProcessor.ts
+++ b/services/dataProcessor.ts
@@ -1820,8 +1820,12 @@ export const calculateVelocityMap = (data: SalesRecord[]): Map<string, number> =
     const latestWeek = yearData.length > 0 ? Math.max(...yearData.map(r => r.week).filter(w => w !== undefined) as number[]) : 0;
 
     const last4WeeksKeys = new Set<string>();
+    // Start from previous week to ensure we use COMPLETED weeks
+    // If raw data includes current partial week, we skip it.
+    const startWeek = latestWeek - 1;
+
     for (let i = 0; i < 4; i++) {
-        let w = latestWeek - i;
+        let w = startWeek - i;
         let y = latestYear;
         if (w <= 0) {
             w = 52 + w;