get the selected working days for previous year

[#1]

hi all,

i had a scenario like

=if(count({<SalesFy={$(=max(SalesFy)-1)}>}billnumber)>0,count({<SalesFy={$(=max(SalesFy)-1)}>billdate))

The above query working fine financial year,month

but when i select some 4 dates in current year i need to get the same month four dates for previous year

this is for current year and previous year sales comparsion purpose and also for to see the working days count for current and previous year..

Thanks in Advance

[#2]

please check the above comment i had attached my sample application...

Sunny T