problem with sameperiodlastyear

Hi guys

I've created YTD in the following period 01/01 --> 10/27 with the following formula, but I'm having trouble with incorporating the sameperiodlastyear formula in it:

Actual YTD ($) =  TOTALYTD (sum(f_sales[Actual ($)]) ; d_time[calender_date] ; DATESBETWEEN(d_time[calender_date] ; "01/01";"10/27"))

I've also postet a picture, since it's easier to see

I appreciate any ideas of how to get the same periodlastyear

Thanks in advance