The accumulative Calculation Table Value is like this example:
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Ekspor_ID | Dokumen_Impor | Dokumen_Ekspor | SQM_Impor |SQM_Ekspor | Total_Accumulative_SQM
1 | I1 | E1 | 2,361.60 | 1,324.80 | 1,036.80
2 | I2 | E2 | 3,361.20 | 2,056.20 | 2,341.80
3 | I3 | E3 | 4,420.50 | 1,600.20 | 5162.10
Fields "(2,361.60) SQM_Impor - (1,324.80) SQM_Ekspor = (1,036.80) Total_Accumulative_SQM"
and then from the resulted "(1,036.80) Total_Accumulative_SQM + (3,361.20) SQM_Impor - (2,056.20) SQM_Ekspor = (2,341.80) Total_Accumulative_SQM"
and then from the resulted "(2,341.80) Total_Accumulative_SQM + (4,420.50) SQM_Impor - (1,600.20) SQM_Ekspor = (5162.10) Total_Accumulative_SQM"
Thank You very much.