Crosstab division question!

[JOM]

I want to calculate the service level in my report, the information in my
reports comes from a crostab query. The service level is calculated for each
document as follows: ontime/total submitted% but am not sure how to do this
in my report!

I have the following infor in my crosstab query:
TRANSFORM Count(nz([TaxDocName])) AS TaxDocNames
SELECT
IIf([tblTaxDoc]![TaxDocStatus]="Complete",(IIf((([tblTaxDoc]![TaxDocName]="W2"
Or [tblTaxDoc]![TaxDocName]="1099") And
DateDiff("d",[tblBorrower]![RqstDateRcvd],[tblTaxDoc]![TxDocDateRcvd)<=10) Or
([tblTaxDoc]![TaxDocName]="1040" And
DateDiff("d",[tblBorrower]![RqstDateRcvd],[tblTaxDoc]![TxDocDateRcvd)<=2),"OnTime","OutStd"))) AS CompOnTime
FROM tblBorrower INNER JOIN tblTaxDoc ON (tblBorrower.BorID =
tblTaxDoc.BorID) AND (tblBorrower.BorID = tblTaxDoc.BorID)
WHERE (((tblTaxDoc.TaxDOcStatus)="Complete") AND ((tblTaxDoc.TxDocDateRcvd)
Between #12/1/2000# And #12/30/2005#))
GROUP BY
IIf([tblTaxDoc]![TaxDocStatus]="Complete",(IIf((([tblTaxDoc]![TaxDocName]="W2"
Or [tblTaxDoc]![TaxDocName]="1099") And
DateDiff("d",[tblBorrower]![RqstDateRcvd],[tblTaxDoc]![TxDocDateRcvd)<=10) Or
([tblTaxDoc]![TaxDocName]="1040" And
DateDiff("d",[tblBorrower]![RqstDateRcvd],[tblTaxDoc]![TxDocDateRcvd])<=2),"OnTime","OutStd"))), tblTaxDoc.TaxDOcStatus
PIVOT tblTaxDoc.TaxDocName In (W2, 1040, 1099);