How to round the result of a calculation?

Hi everyone,

I would like to round the value for a calculation, I try wit this

api.Data.Calculate("A#P_EBPPrct:O#Import:U1#D0000:U2#P0000:U3#CORP_ADJ:U4#PJ00000 =  Round(Divide(A#433100, A#411000:E#" & strEntTx3 & ":C#Local:O#Top:U1#ALL_DEPARTMENTS:U2#PROMO:U3#CORP_RPT:U4#ALL_PROJECTS))")

or this

api.Data.Calculate("A#P_EBPPrct:O#Import:U1#D0000:U2#P0000:U3#CORP_ADJ:U4#PJ00000 =  Divide(A#433100, A#411000:E#" & strEntTx3 & ":C#Local:O#Top:U1#ALL_DEPARTMENTS:U2#PROMO:U3#CORP_RPT:U4#ALL_PROJECTS)",AddressOf OnEvalDataBuffer)

Private Sub OnEvalDataBuffer(ByVal api As FinanceRulesApi, ByVal evalName As String, ByVal eventArgs As EvalDataBufferEventArgs)
    Dim resultCells As New Dictionary(Of DataBufferCellPk, DataBufferCell)
    For Each sourceCell As DataBufferCell In eventArgs.DataBuffer1.DataBufferCells.Values
                sourceCell.CellAmount = math.round(sourceCell.CellAmount)
    Next

    eventArgs.DataBufferResult.DataBufferCells = eventArgs.DataBuffer1.DataBufferCells
End Sub

but didn't work, so, OS have a way to round values in a calculation?