Ok this is what i have, but for some reason i double check the calculation and it dosent come out right.

The way i check just to make sure is, i will add shipping and handling + sales amount then * it by the tax amount, and it should come out to the invoice amount, and it dosent.

VB Code:
  1. Public Sub Command1_Click()
  2. Text3.Text = (Val(Text1.Text) / Val(Text2.Text)) * 100
  3. End Sub
  4.  
  5. Public Sub Command2_Click()
  6. ' this is where i can put in the value of the part ($4.49) and then have it * by the percentage of the tax
  7. Text5.Text = (Val(Text4.Text) * Val(Text3.Text))
  8. End Sub
  9.  
  10. Private Sub Form_Load()
  11.     Load_Default_Values
  12. End Sub
  13.  
  14. Private Sub Load_Default_Values()
  15.     Text1.Text = ""
  16.     Text2.Text = ""
  17.     Text3.Text = ""
  18.     Text4.Text = ""
  19.     Text5.Text = ""
  20. End Sub