Zastosuj warunek IF do zakresu Excel VBA

Napisałem ten kod, ale nie działa. Dlaczego?

Dim oRo As String
Dim nRo As String


Lastro = ActiveSheet.Cells(Rows.Count, 2).End(xlUp).Row
oRo = "J2:O" & Lastro
nRo = "Q2:V" & Lastro


Range("C2:G" & Lastro).Select

With Range("C2:G" & Lastro)
.Range("C2:G" & Lastro).Formula = "=IF(oRo*nRo<0,ROUNDUP(oRo*1.3,-2),IF(ABS(oRo)    <=ABS(nRo),nRo,ROUNDUP(oRo*1.3,-2)))"
End With    

End Sub

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