Trended Inflation Data

[Anonymous]

This seems like it should be straight forward, but this is the first time I've used Qliksense so I'm still learning the syntax. I've attached a screen shot of my data. It has four fields:

I want to create a graph that shows year of year labor inflation. So for 2016, the value would be:

((Sum(Wages) where Year = 2016)/(Sum(hours) where Year= 2016) -

(Sum(Wages) where Year =2015)/(Sum(Hours) where Year=2015)) /

(Sum(Wages) where Year =2015)/(Sum(Hours) where Year=2015)

2016 would, in theory, be replaced with the Year from the dimension and 2015 would be replaced with Year-1.

The end result would look like this, where I've just loaded the data as final inflation numbers.

Any advice would be appreciated.