fix: aggregate value tooltip

Author: gjulivan

packages/shared/charts/src/utils/__tests__/aggregations.spec.ts

@@ -34,7 +34,7 @@ describe("aggregateDataPoints", () => {
 
                 expect(result.x).toEqual(["A", "B", "C"]);
                 expect(result.y).toEqual([25, 45, 30]);
-                expect(result.hovertext).toEqual(["SUM: 25 (2 values)", "SUM: 45 (2 values)", "hover4"]);
+                expect(result.hovertext).toEqual(["25", "45", "hover4"]);
             });
 
             it("should preserve original hover text for single values", () => {

packages/shared/charts/src/utils/aggregations.ts

@@ -55,10 +55,7 @@ export function aggregateDataPoints(
         const aggregatedValue = computeAggregate(yVals, aggregationType);
         aggregatedY.push(aggregatedValue);
 
-        const aggregatedHoverText =
-            yVals.length > 1
-                ? `${aggregationType.toUpperCase()}: ${aggregatedValue} (${yVals.length} values)`
-                : hoverTexts[0];
+        const aggregatedHoverText = yVals.length > 1 ? aggregatedValue.toLocaleString() : hoverTexts[0];
 
         aggregatedHover.push(aggregatedHoverText);
     }