Want entry in column 16 to clear if value in column 12 is = to 10
When entry is made into column 12 as target calls sub pledge following.

If target.column = 12 And target.Value = 10 And IsNumeric(target.Value)
Then _
Call Pledge(target)

Public Sub Pledge(ByVal target As range)
Sheets("data").Select
target("column = 16").ClearContents
End Sub

Know I am missing something all entries in same row and will apply thru
complete sheet. Reason I believe (target) keeps column row relationship.