ITaxable now has decimal properties

InABox.Core/Objects/Entity.cs

@@ -32,10 +32,10 @@ namespace InABox.Core
 
     public interface ITaxable
     {
-        double ExTax { get; set; }
-        double TaxRate { get; set; }
-        double Tax { get; set; }
-        double IncTax { get; set; }
+        decimal ExTax { get; set; }
+        decimal TaxRate { get; set; }
+        decimal Tax { get; set; }
+        decimal IncTax { get; set; }
     }
 
     public interface IProblem
@@ -321,25 +321,25 @@ namespace InABox.Core
                     
                     if (name.Equals("ExTax"))
                     {
-                        taxable.Tax = (double)after * (taxable.TaxRate / 100.0F);
-                        taxable.IncTax = (double)after + taxable.Tax;
+                        taxable.Tax = (decimal)after * (taxable.TaxRate / 100);
+                        taxable.IncTax = (decimal)after + taxable.Tax;
                     }
 
                     else if (name.Equals("TaxRate"))
                     {
-                        taxable.Tax = taxable.ExTax * ((double)after / 100.0F);
+                        taxable.Tax = taxable.ExTax * ((decimal)after / 100);
                         taxable.IncTax = taxable.ExTax + taxable.Tax;
                     }
 
                     else if (name.Equals("Tax"))
                     {
-                        taxable.ExTax = taxable.IncTax - (double)after;
+                        taxable.ExTax = taxable.IncTax - (decimal)after;
                     }
 
                     else if (name.Equals("IncTax"))
                     {
-                        taxable.ExTax = (double)after / ((100.0F + taxable.TaxRate) / 100.0F);
-                        taxable.Tax = (double)after - taxable.ExTax;
+                        taxable.ExTax = (decimal)after / ((100 + taxable.TaxRate) / 100);
+                        taxable.Tax = (decimal)after - taxable.ExTax;
                     }
                 
                 }