diff --git a/pyglance/glance/delta.py b/pyglance/glance/delta.py
index 0debd97e4821cf5153d7921aa4d8abf29dfdb4a4..cc5bfd1534cee07d9db226cc379b33046f80e906 100644
--- a/pyglance/glance/delta.py
+++ b/pyglance/glance/delta.py
@@ -276,7 +276,7 @@ def _get_numerical_data_stats(a, b, diff_data, data_is_finite_mask, outside_epsi
     total_num_finite_values = sum(data_is_finite_mask)
     
     # no dividing by 0!
-    fraction_too_different = 1.0
+    fraction_too_different = 0.0
     fraction_perfect = 0.0
     if total_num_finite_values > 0 :
         fraction_too_different = num_finite_values_too_different / float(total_num_finite_values)