How to easily create YoY Comparison in Chart

[#1]

I have some data where I would like to have a year over year comparison. My data has a Fiscal Year Quarter field with values of 2014-Q1 to 2015-Q4. Is there a simple way using expressions to create a YoY comparison chart like the image below?

Thanks in advance!

[maxgro · Accepted solution]

using 2 calculated dimensions (red rectangle)

and 1 expression (green)

[#3]

Perfect! This is exactly what I need. Thanks Massimo!