GPU: 
from sales
calculate gpu by month, store, transac
forecast said GPU

from analytics
- take into acount itunes544

.......

forecast

from bi.accounting take  gross, units
from bi.analytics  take  gross, units, paidunits, freeunits, gest, gest_net_of_SC, gest_net_of_SC_no_rd

## RECALL:  gest is the following
  ----------------------------------------------------

    gest_no_rd = GG.gpu_using * AA.paidunits
    gest       = if   (is_royaltydollar_zero) GG.gpu_using * AA.paidunits   
                 else  royaltydollar_times_paidunits

    SET gest = royaltydollar_times_paidunits
    WHERE (NOT is_royaltydollar_zero)  
    
  --    FILTER BY paidunits_expected_ratio != 1
  --    THEN MULTIPLY gest := gest * paidunits_expected_ratio
    UPDATE bi.aggregated_analytics
    SET gest       = gest * paidunits_expected_ratio
      , gest_no_rd = gest_no_rd * paidunits_expected_ratio
    WHERE (paidunits_expected_ratio != 1) 
    ;
  ----------------------------------------------------

    tmp_DT.split_percs.acc    <- DT.acc[, list(OA_gross_forDSOM = sum(gross)), keyby=kCols.splitgroup]
    tmp_DT.split_percs.anal   <- DT.anal[date %ni% unique(tmp_DT.split_percs.acc$date), list(OA_gross_forDSOM = sum(gest, na.rm=TRUE)), keyby=kCols.splitgroup]
    DT.split_percs.unexpanded <- rbind(tmp_DT.split_percs.acc, tmp_DT.split_percs.anal) [date >= minDateToKeep]

Calculate the split percentages
  OA_gross_forDSOM :=  sum(gross) when DS is in DT.acc, otherwise summ(gest) when DS is in DT.anal
  
DT.split_percs.unexpanded