how to cancel online subscription

I've barely used the the yearly online subscription and the renewal is coming up on steam and I'm worried it's just going to charge me without asking. Does anyone know how to cancel it?

 

I'm fairly sure it's pay as you go.

 

https://steamcommunity.com/app/365960/discussions/0/358415738188551514/

 

I stand corrected. I don't think there is an automatic renewal option in the non-steam version.

 

I think it's worth the money to renew at least one more time. It appear that RF2 could be about to takeoff... or burst into flames in the attempt. With all probability, within one year, RF2 will look like a shiny new product.
Cheers