Index: Ringtoets/Piping/src/Ringtoets.Piping.Data/PipingCalculationScenario.cs
===================================================================
diff -u -rb2a56be4d42df059d8aaaef53cbdce67b48fd9c3 -rc7c07db38829afdc5965c331844e1d39123944ff
--- Ringtoets/Piping/src/Ringtoets.Piping.Data/PipingCalculationScenario.cs	(.../PipingCalculationScenario.cs)	(revision b2a56be4d42df059d8aaaef53cbdce67b48fd9c3)
+++ Ringtoets/Piping/src/Ringtoets.Piping.Data/PipingCalculationScenario.cs	(.../PipingCalculationScenario.cs)	(revision c7c07db38829afdc5965c331844e1d39123944ff)
@@ -20,6 +20,7 @@
 // All rights reserved.
 
 using System;
+using Core.Common.Base.Data;
 
 namespace Ringtoets.Piping.Data
 {
@@ -28,6 +29,8 @@
     /// </summary>
     public class PipingCalculationScenario : PipingCalculation
     {
+        private RoundedDouble contribution;
+
         /// <summary>
         /// Creates a new instance of <see cref="PipingCalculationScenario"/> with default values set for some of the parameters.
         /// </summary>
@@ -51,6 +54,16 @@
         /// <summary>
         /// Gets the contribution of the scenario.
         /// </summary>
-        public double Contribution { get; set; }
+        public RoundedDouble Contribution
+        {
+            get
+            {
+                return contribution;
+            }
+            set
+            {
+                contribution = value.ToPrecision(0);
+            }
+        }
     }
 }
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