Index: Ringtoets/Piping/src/Ringtoets.Piping.Forms/Views/PipingCalculationRow.cs
===================================================================
diff -u -r028fa7ac2f1cc6bec17d9db071064febd4f6261b -r4af0bffb50faa15fa8accb67e35b80af45dc1213
--- Ringtoets/Piping/src/Ringtoets.Piping.Forms/Views/PipingCalculationRow.cs	(.../PipingCalculationRow.cs)	(revision 028fa7ac2f1cc6bec17d9db071064febd4f6261b)
+++ Ringtoets/Piping/src/Ringtoets.Piping.Forms/Views/PipingCalculationRow.cs	(.../PipingCalculationRow.cs)	(revision 4af0bffb50faa15fa8accb67e35b80af45dc1213)
@@ -29,7 +29,7 @@
 namespace Ringtoets.Piping.Forms.Views
 {
     /// <summary>
-    /// This class represents a row of <see cref="PipingCalculationScenario"/>.
+    /// This class represents a row of <see cref="PipingCalculationScenario"/> in the <see cref="PipingCalculationsView"/>.
     /// </summary>
     internal class PipingCalculationRow
     {
@@ -62,7 +62,7 @@
         }
 
         /// <summary>
-        /// Gets and sets the <see cref="PipingCalculationScenario"/> is relevant.
+        /// Gets or sets the <see cref="PipingCalculationScenario"/> is relevant.
         /// </summary>
         public bool IsRelevant
         {
@@ -78,7 +78,7 @@
         }
 
         /// <summary>
-        /// Gets and sets the contribution of the <see cref="PipingCalculationScenario"/>.
+        /// Gets or sets the contribution of the <see cref="PipingCalculationScenario"/>.
         /// </summary>
         public RoundedDouble Contribution
         {
@@ -88,13 +88,13 @@
             }
             set
             {
-                pipingCalculation.Contribution = new RoundedDouble(2, value / 100);
+                pipingCalculation.Contribution = (RoundedDouble)(value / 100);
                 pipingCalculation.NotifyObservers();
             }
         }
 
         /// <summary>
-        /// Gets and sets the name of the <see cref="PipingCalculationScenario"/>.
+        /// Gets or sets the name of the <see cref="PipingCalculationScenario"/>.
         /// </summary>
         public string Name
         {
@@ -111,7 +111,7 @@
         }
 
         /// <summary>
-        /// Gets and sets the stochastic soil model of the <see cref="PipingCalculationScenario"/>.
+        /// Gets or sets the stochastic soil model of the <see cref="PipingCalculationScenario"/>.
         /// </summary>
         public DataGridViewComboBoxItemWrapper<StochasticSoilModel> StochasticSoilModel
         {
@@ -129,7 +129,7 @@
         }
 
         /// <summary>
-        /// Gets and sets the stochastic soil profile of the <see cref="PipingCalculationScenario"/>.
+        /// Gets or sets the stochastic soil profile of the <see cref="PipingCalculationScenario"/>.
         /// </summary>
         public DataGridViewComboBoxItemWrapper<StochasticSoilProfile> StochasticSoilProfile
         {
@@ -161,7 +161,7 @@
         }
 
         /// <summary>
-        /// Gets and sets the hydraulic boundary location of the <see cref="PipingCalculationScenario"/>.
+        /// Gets or sets the hydraulic boundary location of the <see cref="PipingCalculationScenario"/>.
         /// </summary>
         public DataGridViewComboBoxItemWrapper<HydraulicBoundaryLocation> HydraulicBoundaryLocation
         {
@@ -180,7 +180,7 @@
         }
 
         /// <summary>
-        /// Gets and sets the damping factory exit mean of the <see cref="PipingCalculationScenario"/>.
+        /// Gets or sets the damping factory exit mean of the <see cref="PipingCalculationScenario"/>.
         /// </summary>
         public RoundedDouble DampingFactorExitMean
         {
@@ -197,7 +197,7 @@
         }
 
         /// <summary>
-        /// Gets and sets the phreatic level exit mean of the <see cref="PipingCalculationScenario"/>.
+        /// Gets or sets the phreatic level exit mean of the <see cref="PipingCalculationScenario"/>.
         /// </summary>
         public RoundedDouble PhreaticLevelExitMean
         {
@@ -214,7 +214,7 @@
         }
 
         /// <summary>
-        /// Gets and sets the entry point l of the <see cref="PipingCalculationScenario"/>.
+        /// Gets or sets the entry point l of the <see cref="PipingCalculationScenario"/>.
         /// </summary>
         public RoundedDouble EntryPointL
         {
@@ -231,7 +231,7 @@
         }
 
         /// <summary>
-        /// Gets and sets the exit point l of the <see cref="PipingCalculationScenario"/>.
+        /// Gets or sets the exit point l of the <see cref="PipingCalculationScenario"/>.
         /// </summary>
         public RoundedDouble ExitPointL
         {