Not getting you properly but i have done something as below.
I have used few calculation one is for current year real value and the last year real value as below
Last Year Real value = IF(YEAR('Table name'[Date Field])=YEAR(NOW())-1 , 'Table name'[Real value])
Current Year Real value = IF(YEAR('Table name'[Date Field])=YEAR(NOW()),'Table name'[Real value])
I thnik you should attach your pbix so that i can have more idea and give you the best i can.
Thanks
Abhi.