The chart i expected already mention in my question , as below :-
How to make 1,447 display as 139 , when month = 3
How to make 1,387 display as 139 , when month = 2
How to make 1,785 display as 108 , when month = 1
The issue i aware is :-
1. YTD Cash Conversion Cycle for Table 1 i display result is wrong , because the average stock i suppose to be from Jan 2015 till Feb 2015 , but now when month= 2 , it only cal Feb value.
In conclusion :-
For SET expression is only capable to use it for sales , as YTD sales for Feb , the SET expression is able to sum up Jan and Feb even when user click on month = 2
For my case is inventory average stock when i click on month = 2 , effectively i only use feb data to cal the average stock , this is not correct !
In another work , if i want to have a field call Target_CCC which is target for Cash conversion cycle , i need to fill in monthly target amount 100 , and use this value to compare with table 1 YTD value , in table it will show it correct , but if i don't click of month =2 only click on year= 2015 , in this case my target will be 100 * 12 = 1200 , which is wrong, because monthly target should be 100 , should not be accumulate.
Hope you understand my issue , as not easy for me explan but i try.
Finally write till here , i realise that i cannot using SET expression , due to SET expression are only use for hand sales , for monthly stock in Balance sheet is not same as sales , it cal base jan stock amount sum up Feb stock as total stock for Feb. which is wrong.
Look like i need to spend some time to make my Table 1 value correct first , then can make chart 1 , in order for both correct.
If you happen read till here , and if you have some comment , hope you can share with me.