I have a dimension (TW1_Var) with some values that should be summarize when I do drill up in the model (Account Receivable, Over 14 days and Over 1800 days), but other values should be calculated in base to summarized values (%over 14 days and %over 180 days). At bottom level the calculations are perfect, but when I drill up in the dimensions I have problems. Could you help me?