Tooltip positioned incorrectly on non 100% scale factor (#15382)

* Tooltip positioned incorrectly on non 100% scale factor

* Change files

Author: acoates-ms

change/react-native-windows-cc8b5ca3-c345-4091-87d2-b21198d72f2c.json

@@ -0,0 +1,7 @@
+{
+  "type": "prerelease",
+  "comment": "Tooltip positioned incorrectly on non 100% scale factor",
+  "packageName": "react-native-windows",
+  "email": "[email protected]",
+  "dependentChangeType": "patch"
+}

vnext/Microsoft.ReactNative/Fabric/Composition/TooltipService.cpp

@@ -267,7 +267,7 @@ void TooltipTracker::ShowTooltip(const winrt::Microsoft::ReactNative::ComponentV
           static_cast<int>((tm.width + tooltipHorizontalPadding + tooltipHorizontalPadding) * scaleFactor);
       tooltipData->height = static_cast<int>((tm.height + tooltipTopPadding + tooltipBottomPadding) * scaleFactor);
 
-      POINT pt = {static_cast<LONG>(m_pos.X), static_cast<LONG>(m_pos.Y)};
+      POINT pt = {static_cast<LONG>(m_pos.X * scaleFactor), static_cast<LONG>(m_pos.Y * scaleFactor)};
       ClientToScreen(parentHwnd, &pt);
 
       RegisterTooltipWndClass();