Please Help Tax and SubTotal calculation invoce

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Hello i need print this price at end invoice…
καθαρο 13 [=F(TN(’{TICKET ORDER EXACT TOTAL EXP:O.Taxes.Contains(“13”)}’)-TN(’{TICKET ORDER TAX TOTAL EXP:O.Taxes.Contains(“13”)}’))]

φπα 24 [=F(TN(’{TICKET ORDER TAX TOTAL EXP:O.Taxes.Contains(“13”)}’),‘000.00’)]