Macro "if" loop, change value cell if condition in other cell is met

Hi everyone,

I have the following macro (piece of it); which works very well:

 'We loop from Lastrow to Firstrow (bottom to top)
        For Lrow = Lastrow To Firstrow Step -1
            'We check the values in the A column in this example
            With .Cells(Lrow, "Q")
            
                If Not IsError(.Value) Then
                 
                   If IsNumeric(.Value) = True Then
If .Value >= 100 Then
.Value = (.Value + 7) * 1.3
End If
End If
     'Checks if value in row Q is 100 or more and applies formula
        
                End If
            End With
        Next Lrow

Now I would like to change it in a way that it does the following:

If the value in column A is "NAME1", then the value in column B will multiply by 1.5

Haven't a clue where to begin, can anyone help me please?

Thanks in advance,
DMR