Conditional Measure Not Working the way I Imagined - any help greatly appreciated

So I have built a Sales Effciency data model with visuals showing effciency ratios each month of the year. 

I had a request to show which stores have shown effciency improvements month-over-month, and which stores have declined in effciency month-over-month. I would like to return a binary conditional where 0 indicates a gain and 1 indicates a decline, to be used for Green and Red color coding respectively on a map visual. 

Before I get the Map visual going, I wanted to test my measure in a table view, here is a quick screenshot:

The first three measures in the example table work correctly - I'll paste how to measures are defined below just for reference - but as you can see my Eff MoM Conditional is returnign zeros for all stores but I would like for any stores with a negative MoM Efficiency % Chg to return a 1.

My conditional measure is just a simple If Statement, so maybe there is another way I could build that measure to return the results I was expecting. I have played around with this a good deal and would appreciate any insights you may have. Thanks for your time.