Marked as 'AdvertsingProfitControl v 0.8.5' by its folder name. The 'Add Records' form has been finshed to at least include all the information the Advertising Profit Control sheet had.

AdvertsingProfitControl/frmShrink.cs

@@ -0,0 +1,25 @@
+using System;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.Data;
+using System.Drawing;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Windows.Forms;
+
+namespace AdvertsingProfitControl
+{
+    public partial class frmShrink : Form
+    {
+        public frmShrink()
+        {
+            InitializeComponent();
+        }
+
+        private void shrinkNumericUpDown_ValueChanged(object sender, EventArgs e)
+        {
+            realTimeShrinkLabel.Text = "Current shrink assumed to be " + shrinkNumericUpDown.Value.ToString("P");
+        }
+    }
+}