Find my approach below.
Upfront: I removed the filter on Year
a. I defined the level 1, 2, 3 in a Hierarchy (Hierarchy Level 1, 2, 3) and stored it in the row.
b. I defined the delta as depicted below
c. and last but not least defined
d. be sure you set the Number format for Growth to "Percentage"
Hope it helps...
Have a nice day:)
thank you very much for your reply.
Glad to be able to help out. Thanks for the "scores". Much appreciated