financial qtr script error

[#1]

hi,

i have the follwoing script in my calender

Upper(Month(monthstart($(TimeField)-26,1))) as Month,

how can i get my quarters code to follow this logic?

Dual('Q'&Num(Ceil(Num(Month($(TimeField)))/3)),Num(Ceil(NUM(Month($(Timefield)))/3),00)) as [Quarter],

I HAVE TTRIED THE FOLLOWING

Dual('Q'&Num(Ceil(Num(Month($(TimeField)-26,1))/3)),Num(Ceil(NUM(Month($(Timefield)-26,1))/3),00)) as [Quarter],

best

BRAD