Yes, this is something I have seen in the past as well. We use cloud storage alone these days, so a lot of figures do not show any usage now. 

Anyhow I was hoping this would have been aligned by now, so i would open a ticket for it and let development have this fixed and aligned for once and for all. 

Same for date to be full in Java GUI and Command Center, always different dates. CC seems to be most accurate on this date.

Due to these inconsistencies I always perform my own forecasting