Index: Ringtoets/Integration/src/Ringtoets.Integration.Forms/Views/FailureMechanismContributionView.cs
===================================================================
diff -u -rb57739d9a5fbeef38a55020b0839d444d39cdbf7 -rd5326f028bd3c83dc0479606ea1e2e1ead914e29
--- Ringtoets/Integration/src/Ringtoets.Integration.Forms/Views/FailureMechanismContributionView.cs	(.../FailureMechanismContributionView.cs)	(revision b57739d9a5fbeef38a55020b0839d444d39cdbf7)
+++ Ringtoets/Integration/src/Ringtoets.Integration.Forms/Views/FailureMechanismContributionView.cs	(.../FailureMechanismContributionView.cs)	(revision d5326f028bd3c83dc0479606ea1e2e1ead914e29)
@@ -258,9 +258,12 @@
                 HeaderText = CommonGuiResources.FailureMechanismContributionView_GridColumn_ProbabilitySpace,
                 Name = string.Format(columnNameFormat, probabilitySpaceName),
                 AutoSizeMode = DataGridViewAutoSizeColumnMode.Fill,
-                MinimumWidth = 100
+                MinimumWidth = 100,
+                DefaultCellStyle =
+                {
+                    Format = "1/#,#"
+                }
             };
-
             probabilityDistributionGrid.AutoGenerateColumns = false;
             probabilityDistributionGrid.Columns.AddRange(assessmentColumn, probabilityColumn, probabilityPerYearColumn);
         }