I have the following data: ACCT TRAN_ORDER END_BAL_WITH_FEE END_BAL_NO_FEE TRANSACTION Rolling_Bal_w_FEE Rolling_Bal_wo_fee x 1 1455.27 1485.27 0     x 2     -1809.86     x 3     1000     x 4     -485     x 5     -59     x 6     50.32     x 7     -36     x 8     2300     x 9     -144.9     x 10     0.02     x 11     -13     x 12     250     x 13     -2200     x 14     -200     y 1 3023.24 3023.24 0     y 2     -22.75     y 3     -6     y 4     -55.5     y 5     -27.34     y 6     -17.14     y 7     -42.5     y 8     -10.47     y 9     -58.19     y 10     -15.49     y 11     -69.34     y 12     -2.08     y 13   50 -371.77     y 14     -500     y 15     -14       I have over 1600 accts in a specific transaction order (TRAN_ORDER). Each at TRAN_ORDER = 1 there is an ending balance with a fee and without a fee. I need to step down through the data to create two columns for a rolling balance with a fee and rolling balance without a fee.   So in the above example acct x I need end_bal_w_fee + Transaction = rolling balance w fee or 1455.27 + (-1809.86) = -354.59 Then it needs to step down and do -354.59 + 1000 = 645.41 and so on until it is no longer acct x   The second issue showing in acct y is that TRAN_ORDER 13 has a credit present in the end bal without fee column. while the program is stepping through the rolling balance 1 to 12 at 13 the column for rolling balance without fee needs the prior ending balance plus the credit plus the transaction so in this case 2696.44 + 50 + (-371.77) = 2374.67       ... View more