' Assuming dt is your DataTable
' Initialize a variable to store the last "Retail" package value found
Dim lastRetailPackage As String = ""
' Iterate through each row in the DataTable
For Each row As DataRow In dt.Rows
' Check if the current row's Keyword column value is "Retail"
If row("Keyword").ToString().Equals("Retail") Then
' Update the last found "Retail" package value
lastRetailPackage = row("Package").ToString()
ElseIf row("Keyword").ToString().Equals("Volume") Then
' If the current row's Keyword is "Volume", update its Package column with the last found "Retail" package value
row("Package") = lastRetailPackage
End If
Next
Output