diff --git a/StartingSolution.sln b/StartingSolution.sln
index f3a32f6..c0dadac 100644
--- a/StartingSolution.sln
+++ b/StartingSolution.sln
@@ -5,10 +5,6 @@ VisualStudioVersion = 16.0.29509.3
 MinimumVisualStudioVersion = 10.0.40219.1
 Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "BrokerageLib", "BrokerageLib\BrokerageLib.csproj", "{07F455FF-CE11-40F2-A66E-95FA497522FB}"
 EndProject
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "TestingLib", "TestingLib\TestingLib.csproj", "{077F4E49-2A80-463A-B2D0-805DACB80469}"
-EndProject
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "TestRunner", "TestRunner\TestRunner.csproj", "{65401167-7B49-4C88-AC43-F2B4A213951B}"
-EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
 		Debug|Any CPU = Debug|Any CPU
@@ -19,14 +15,6 @@ Global
 		{07F455FF-CE11-40F2-A66E-95FA497522FB}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{07F455FF-CE11-40F2-A66E-95FA497522FB}.Release|Any CPU.ActiveCfg = Release|Any CPU
 		{07F455FF-CE11-40F2-A66E-95FA497522FB}.Release|Any CPU.Build.0 = Release|Any CPU
-		{077F4E49-2A80-463A-B2D0-805DACB80469}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
-		{077F4E49-2A80-463A-B2D0-805DACB80469}.Debug|Any CPU.Build.0 = Debug|Any CPU
-		{077F4E49-2A80-463A-B2D0-805DACB80469}.Release|Any CPU.ActiveCfg = Release|Any CPU
-		{077F4E49-2A80-463A-B2D0-805DACB80469}.Release|Any CPU.Build.0 = Release|Any CPU
-		{65401167-7B49-4C88-AC43-F2B4A213951B}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
-		{65401167-7B49-4C88-AC43-F2B4A213951B}.Debug|Any CPU.Build.0 = Debug|Any CPU
-		{65401167-7B49-4C88-AC43-F2B4A213951B}.Release|Any CPU.ActiveCfg = Release|Any CPU
-		{65401167-7B49-4C88-AC43-F2B4A213951B}.Release|Any CPU.Build.0 = Release|Any CPU
 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE
diff --git a/TestRunner/TestRunner.csproj b/TestRunner/TestRunner.csproj
index 9c32b74..2ee36d3 100644
--- a/TestRunner/TestRunner.csproj
+++ b/TestRunner/TestRunner.csproj
@@ -94,11 +94,5 @@
   <ItemGroup>
     <None Include="App.config" />
   </ItemGroup>
-  <ItemGroup>
-    <ProjectReference Include="..\TestingLib\TestingLib.csproj">
-      <Project>{077f4e49-2a80-463a-b2d0-805dacb80469}</Project>
-      <Name>TestingLib</Name>
-    </ProjectReference>
-  </ItemGroup>
   <Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
 </Project>
\ No newline at end of file
diff --git a/TestingLib/TestTheComissionCalculator.cs b/TestingLib/TestTheComissionCalculator.cs
new file mode 100644
index 0000000..e5197ba
--- /dev/null
+++ b/TestingLib/TestTheComissionCalculator.cs
@@ -0,0 +1,22 @@
+using System;
+using System.Collections.Generic;
+using System.Text;
+
+namespace TestingLib
+{
+    public class TestTheComissionCalculator
+    {
+        [CheckThisMethod]
+        public void ReturnStandardCommission()
+        {
+            var unitsSold = 90;
+            var unitPrice = 50.00M;
+            var calculator = new BrokerageLib.CommissionCalculator();
+
+            decimal expectedCommission = (unitsSold * unitPrice) * BrokerageLib.Constants.CommissionRate.Standard;
+            decimal calculatedCommission = calculator.DetermineVariableRate(unitsSold, unitPrice);
+
+            Assert.AreEqual(expectedCommission,calculatedCommission,"Commission is not correct!");
+        }
+    }
+}