MLBEDSW-3769: Fix print error

Change-Id: I464528510d6646ac685a31c1b3355252f44d2692
Signed-off-by: Diqing Zhong <diqing.zhong@arm.com>
diff --git a/ethosu/vela/stats_writer.py b/ethosu/vela/stats_writer.py
index 02d95d8..70b3ffb 100644
--- a/ethosu/vela/stats_writer.py
+++ b/ethosu/vela/stats_writer.py
@@ -284,7 +284,7 @@
     if n_operations > 0:
         print(
             f"{n_cpu_operations:d}/{n_operations:d}"
-            f" ({n_cpu_operations / n_operations * 100:4.1%}) operations falling back to the CPU",
+            f" ({n_cpu_operations / n_operations:4.1%}) operations falling back to the CPU",
             file=f,
         )