Index: Riskeer/GrassCoverErosionInwards/test/Riskeer.GrassCoverErosionInwards.IO.Test/Configurations/GrassCoverErosionInwardsCalculationConfigurationImporterTest.cs
===================================================================
diff -u -ra4e3b2745a48598260107bb5bfca7485205cdcc2 -ref89bf29a08cb1bd5ad8ff6a7f55cbaa9b17869f
--- Riskeer/GrassCoverErosionInwards/test/Riskeer.GrassCoverErosionInwards.IO.Test/Configurations/GrassCoverErosionInwardsCalculationConfigurationImporterTest.cs	(.../GrassCoverErosionInwardsCalculationConfigurationImporterTest.cs)	(revision a4e3b2745a48598260107bb5bfca7485205cdcc2)
+++ Riskeer/GrassCoverErosionInwards/test/Riskeer.GrassCoverErosionInwards.IO.Test/Configurations/GrassCoverErosionInwardsCalculationConfigurationImporterTest.cs	(.../GrassCoverErosionInwardsCalculationConfigurationImporterTest.cs)	(revision ef89bf29a08cb1bd5ad8ff6a7f55cbaa9b17869f)
@@ -343,7 +343,7 @@
             // Assert
             Assert.IsTrue(successful);
 
-            var expectedCalculation = new GrassCoverErosionInwardsCalculationScenario
+            var expectedCalculation = new GrassCoverErosionInwardsCalculationScenario(double.NaN)
             {
                 Name = "Berekening 1",
                 InputParameters =
@@ -377,7 +377,7 @@
             TestHelper.AssertLogMessageIsGenerated(call, $"Gegevens zijn geïmporteerd vanuit bestand '{filePath}'.", 1);
             Assert.IsTrue(successful);
 
-            var expectedCalculation = new GrassCoverErosionInwardsCalculationScenario
+            var expectedCalculation = new GrassCoverErosionInwardsCalculationScenario(double.NaN)
             {
                 Name = "Calculation",
                 Contribution = (RoundedDouble) 0.8765
@@ -408,7 +408,7 @@
             TestHelper.AssertLogMessageIsGenerated(call, $"Gegevens zijn geïmporteerd vanuit bestand '{filePath}'.", 1);
             Assert.IsTrue(successful);
 
-            var expectedCalculation = new GrassCoverErosionInwardsCalculationScenario
+            var expectedCalculation = new GrassCoverErosionInwardsCalculationScenario(double.NaN)
             {
                 Name = "Calculation",
                 IsRelevant = false
@@ -438,7 +438,7 @@
             // Assert
             Assert.IsTrue(successful);
 
-            var expectedCalculation = new GrassCoverErosionInwardsCalculationScenario
+            var expectedCalculation = new GrassCoverErosionInwardsCalculationScenario(double.NaN)
             {
                 Name = "Berekening 1",
                 InputParameters =
@@ -474,7 +474,7 @@
             // Assert
             Assert.IsTrue(successful);
 
-            var expectedCalculation = new GrassCoverErosionInwardsCalculationScenario
+            var expectedCalculation = new GrassCoverErosionInwardsCalculationScenario(double.NaN)
             {
                 Name = "Berekening 1"
             };
@@ -503,7 +503,7 @@
             // Assert
             Assert.IsTrue(successful);
 
-            var expectedCalculation = new GrassCoverErosionInwardsCalculationScenario
+            var expectedCalculation = new GrassCoverErosionInwardsCalculationScenario(double.NaN)
             {
                 Name = "Berekening 1",
                 InputParameters =
@@ -565,7 +565,7 @@
 
             Assert.IsTrue(successful);
 
-            var expectedCalculation = new GrassCoverErosionInwardsCalculationScenario
+            var expectedCalculation = new GrassCoverErosionInwardsCalculationScenario(double.NaN)
             {
                 Name = "Berekening 1",
                 InputParameters =
Index: Riskeer/GrassCoverErosionInwards/test/Riskeer.GrassCoverErosionInwards.Plugin.Test/ExportInfos/GrassCoverErosionInwardsCalculationContextExportInfoTest.cs
===================================================================
diff -u -r886b86a66f072735567285a3489923186c236c32 -ref89bf29a08cb1bd5ad8ff6a7f55cbaa9b17869f
--- Riskeer/GrassCoverErosionInwards/test/Riskeer.GrassCoverErosionInwards.Plugin.Test/ExportInfos/GrassCoverErosionInwardsCalculationContextExportInfoTest.cs	(.../GrassCoverErosionInwardsCalculationContextExportInfoTest.cs)	(revision 886b86a66f072735567285a3489923186c236c32)
+++ Riskeer/GrassCoverErosionInwards/test/Riskeer.GrassCoverErosionInwards.Plugin.Test/ExportInfos/GrassCoverErosionInwardsCalculationContextExportInfoTest.cs	(.../GrassCoverErosionInwardsCalculationContextExportInfoTest.cs)	(revision ef89bf29a08cb1bd5ad8ff6a7f55cbaa9b17869f)
@@ -88,7 +88,7 @@
             var assessmentSection = mocks.Stub<IAssessmentSection>();
             mocks.ReplayAll();
 
-            var context = new GrassCoverErosionInwardsCalculationScenarioContext(new GrassCoverErosionInwardsCalculationScenario(),
+            var context = new GrassCoverErosionInwardsCalculationScenarioContext(new GrassCoverErosionInwardsCalculationScenario(double.NaN),
                                                                                  new CalculationGroup(),
                                                                                  new GrassCoverErosionInwardsFailureMechanism(),
                                                                                  assessmentSection);
@@ -107,7 +107,7 @@
             var assessmentSection = mocks.Stub<IAssessmentSection>();
             mocks.ReplayAll();
 
-            var context = new GrassCoverErosionInwardsCalculationScenarioContext(new GrassCoverErosionInwardsCalculationScenario(),
+            var context = new GrassCoverErosionInwardsCalculationScenarioContext(new GrassCoverErosionInwardsCalculationScenario(double.NaN),
                                                                                  new CalculationGroup(),
                                                                                  new GrassCoverErosionInwardsFailureMechanism(),
                                                                                  assessmentSection);
Index: Riskeer/GrassCoverErosionInwards/test/Riskeer.GrassCoverErosionInwards.Plugin.Test/ExportInfos/GrassCoverErosionInwardsCalculationGroupContextExportInfoTest.cs
===================================================================
diff -u -r886b86a66f072735567285a3489923186c236c32 -ref89bf29a08cb1bd5ad8ff6a7f55cbaa9b17869f
--- Riskeer/GrassCoverErosionInwards/test/Riskeer.GrassCoverErosionInwards.Plugin.Test/ExportInfos/GrassCoverErosionInwardsCalculationGroupContextExportInfoTest.cs	(.../GrassCoverErosionInwardsCalculationGroupContextExportInfoTest.cs)	(revision 886b86a66f072735567285a3489923186c236c32)
+++ Riskeer/GrassCoverErosionInwards/test/Riskeer.GrassCoverErosionInwards.Plugin.Test/ExportInfos/GrassCoverErosionInwardsCalculationGroupContextExportInfoTest.cs	(.../GrassCoverErosionInwardsCalculationGroupContextExportInfoTest.cs)	(revision ef89bf29a08cb1bd5ad8ff6a7f55cbaa9b17869f)
@@ -137,7 +137,7 @@
 
             if (hasCalculation)
             {
-                calculationGroup.Children.Add(new GrassCoverErosionInwardsCalculation());
+                calculationGroup.Children.Add(new GrassCoverErosionInwardsCalculation(double.NaN));
             }
 
             var context = new GrassCoverErosionInwardsCalculationGroupContext(calculationGroup,
Index: Riskeer/GrassCoverErosionInwards/test/Riskeer.GrassCoverErosionInwards.Plugin.Test/FileImporters/GrassCoverErosionInwardsDikeProfileReplaceDataStrategyTest.cs
===================================================================
diff -u -ra4e3b2745a48598260107bb5bfca7485205cdcc2 -ref89bf29a08cb1bd5ad8ff6a7f55cbaa9b17869f
--- Riskeer/GrassCoverErosionInwards/test/Riskeer.GrassCoverErosionInwards.Plugin.Test/FileImporters/GrassCoverErosionInwardsDikeProfileReplaceDataStrategyTest.cs	(.../GrassCoverErosionInwardsDikeProfileReplaceDataStrategyTest.cs)	(revision a4e3b2745a48598260107bb5bfca7485205cdcc2)
+++ Riskeer/GrassCoverErosionInwards/test/Riskeer.GrassCoverErosionInwards.Plugin.Test/FileImporters/GrassCoverErosionInwardsDikeProfileReplaceDataStrategyTest.cs	(.../GrassCoverErosionInwardsDikeProfileReplaceDataStrategyTest.cs)	(revision ef89bf29a08cb1bd5ad8ff6a7f55cbaa9b17869f)
@@ -44,10 +44,10 @@
         public void Constructor_FailureMechanismNull_ThrowsArgumentNullException()
         {
             // Call
-            TestDelegate call = () => new GrassCoverErosionInwardsDikeProfileReplaceDataStrategy(null);
+            void Call() => new GrassCoverErosionInwardsDikeProfileReplaceDataStrategy(null);
 
             // Assert
-            var exception = Assert.Throws<ArgumentNullException>(call);
+            var exception = Assert.Throws<ArgumentNullException>(Call);
             Assert.AreEqual("failureMechanism", exception.ParamName);
         }
 
@@ -202,7 +202,7 @@
             // Setup
             DikeProfile existingDikeProfile = DikeProfileTestFactory.CreateDikeProfile("test", "ID1");
 
-            var calculation = new GrassCoverErosionInwardsCalculation
+            var calculation = new GrassCoverErosionInwardsCalculation(double.NaN)
             {
                 InputParameters =
                 {
Index: Riskeer/GrassCoverErosionInwards/test/Riskeer.GrassCoverErosionInwards.Plugin.Test/FileImporters/GrassCoverErosionInwardsDikeProfileUpdateDataStrategyTest.cs
===================================================================
diff -u -ra4e3b2745a48598260107bb5bfca7485205cdcc2 -ref89bf29a08cb1bd5ad8ff6a7f55cbaa9b17869f
--- Riskeer/GrassCoverErosionInwards/test/Riskeer.GrassCoverErosionInwards.Plugin.Test/FileImporters/GrassCoverErosionInwardsDikeProfileUpdateDataStrategyTest.cs	(.../GrassCoverErosionInwardsDikeProfileUpdateDataStrategyTest.cs)	(revision a4e3b2745a48598260107bb5bfca7485205cdcc2)
+++ Riskeer/GrassCoverErosionInwards/test/Riskeer.GrassCoverErosionInwards.Plugin.Test/FileImporters/GrassCoverErosionInwardsDikeProfileUpdateDataStrategyTest.cs	(.../GrassCoverErosionInwardsDikeProfileUpdateDataStrategyTest.cs)	(revision ef89bf29a08cb1bd5ad8ff6a7f55cbaa9b17869f)
@@ -319,7 +319,7 @@
         {
             // Setup
             DikeProfile profileToBeRemoved = DikeProfileTestFactory.CreateDikeProfile("Removed profile", "removed profile ID");
-            var calculation = new GrassCoverErosionInwardsCalculation
+            var calculation = new GrassCoverErosionInwardsCalculation(double.NaN)
             {
                 InputParameters =
                 {
@@ -359,7 +359,7 @@
         {
             // Setup
             DikeProfile affectedProfile = DikeProfileTestFactory.CreateDikeProfile("Profile to be updated", "ID of updated profile");
-            var affectedCalculation = new GrassCoverErosionInwardsCalculation
+            var affectedCalculation = new GrassCoverErosionInwardsCalculation(double.NaN)
             {
                 InputParameters =
                 {
@@ -371,7 +371,7 @@
             const string unaffectedProfileName = "Unaffected Profile";
             const string unaffectedProfileId = "unaffected profile Id";
             DikeProfile unaffectedProfile = DikeProfileTestFactory.CreateDikeProfile(unaffectedProfileName, unaffectedProfileId);
-            var unaffectedCalculation = new GrassCoverErosionInwardsCalculation
+            var unaffectedCalculation = new GrassCoverErosionInwardsCalculation(double.NaN)
             {
                 InputParameters =
                 {
@@ -426,7 +426,7 @@
         {
             // Setup
             DikeProfile removedProfile = DikeProfileTestFactory.CreateDikeProfile("Profile to be removed", "ID of removed profile");
-            var affectedCalculation = new GrassCoverErosionInwardsCalculation
+            var affectedCalculation = new GrassCoverErosionInwardsCalculation(double.NaN)
             {
                 InputParameters =
                 {
@@ -438,7 +438,7 @@
             const string unaffectedProfileName = "Unaffected Profile";
             const string unaffectedProfileId = "unaffected profile Id";
             DikeProfile unaffectedProfile = DikeProfileTestFactory.CreateDikeProfile(unaffectedProfileName, unaffectedProfileId);
-            var unaffectedCalculation = new GrassCoverErosionInwardsCalculation
+            var unaffectedCalculation = new GrassCoverErosionInwardsCalculation(double.NaN)
             {
                 InputParameters =
                 {
@@ -488,7 +488,7 @@
         {
             // Setup
             DikeProfile affectedProfile = DikeProfileTestFactory.CreateDikeProfile("Profile to be updated", "ID of updated profile");
-            var affectedCalculation = new GrassCoverErosionInwardsCalculation
+            var affectedCalculation = new GrassCoverErosionInwardsCalculation(double.NaN)
             {
                 InputParameters =
                 {
@@ -537,7 +537,7 @@
             };
 
             DikeProfile affectedProfile = DikeProfileTestFactory.CreateDikeProfile(geometry, id);
-            var affectedCalculation = new GrassCoverErosionInwardsCalculation
+            var affectedCalculation = new GrassCoverErosionInwardsCalculation(double.NaN)
             {
                 InputParameters =
                 {