Sorting Problem in report

Attached screen shot of report in that sorting problem is there as first it comes zero then the higher value, iam using following collection for the report please suggest what is wrong.

[Collection: TopitemSalesCollS]
Source Collection : TopPIMD VoucherS
Walk : Inventory Entries
By : topitemname : $StockItemName
Aggr Compute : itemQtyAprS : Sum : If @@vchtypeSalY and @@TopmonthFilteraprS Then $BilledQty Else 0
Aggr Compute : itemTotalQtyS : Sum : If @@vchtypeSalY then $BilledQty else 0
Compute : topitemcat : $Parent:StockItem:$StockItemName
Filter : VchFltCatsales
Sort : Default : $itemTotalQtys


Thanks
Johar

 

Sort : Default : $itemTotalQtys

Sort : @@Increasing : $itemtotalQtys or
Sort : @@Default : -$itemTotalQtys

 

Thanks Pankaj, but its not working

 

Sort : @@AmtIncr : $itemTotalQtys

 

nope not working

 

post your full code

 

Problem Solved by :

Sort : @@Default : -$$Number:$itemTotalQtyS

Thanks for the help