How To Add Numbers In Fields Together

So this is my code
Private Sub SK_btn_OpenFile_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles SK_btn_OpenFile.Click
Dim sLine As String = String.Empty
Dim sAllTExt As String = String.Empty
If SK_OpenFileDialog1.ShowDialog() = DialogResult.OK Then
[Code] .....

The text that appears in my textbox is this
Person 1 * 12 * 123.45 *
Person 2 * 24 * 2345.78 *
Employee 1 * 34 * 23.34 *
Employee 2 * 123 * 11.23 *
I want to take the average of the 2nd field. Each field is separated by "*". I have to use the format display 2 integer digits and 2 decimal digits.

So in this case
12, 24, 34, 123 are the numbers
I have to do the same thing for the 3rd field. But I got to add all 3 numbers instead. and use format to display five integer digits (with leading zeros), and 2 decimal digits.