diff --git a/pyinstaller/entrypoint.py b/pyinstaller/entrypoint.py
index b78322e..5944226 100644
--- a/pyinstaller/entrypoint.py
+++ b/pyinstaller/entrypoint.py
@@ -2,7 +2,7 @@ import os
 if os.name == 'nt' and os.environ.get('GDK_SCALE') is None:
     import ctypes
     scale_factor = ctypes.windll.shcore.GetScaleFactorForDevice(0)
-    os.environ["GDK_SCALE"] = f"{scale_factor//100}"
+    os.environ["GDK_SCALE"] = f"{round(scale_factor, -2)//100}"
 
 from yafi import main
 main()