Why would my flow keep adding ['$'] to my compose outputs within an update item function

[Skiroy]

Hello, 

I'm currently going through and comparing values within two lists. I have a bunch of compose functions that are specifying the values I would like to have updated later on in my flow. 

However, when I reference the compose in my update items it's adding a ?['$'] to the end of the specified value. Not sure why it would be doing that automatically. 

Anyone have any insight to why it might be doing that?

Thanks!

[abm]

Hi @Skiroy 

Could you please post a screen shot of your flow?

Thanks