Single post in A Somewhat Extensive Guide to BBCodes

I'm aware that there is very likely something incredibly simple that I'm overlooking with them--but self-updating progress bars, how does one get the correct number of an item to show up in the bar? For example! I have 1719 out of 2100 Flying Gems in my Wishforge Progress bar, and so 1719 Flying gems also in my inventory. How do I get the code for the self-updating progress bar to reflect this? When I enter the number 1719/2100 in the code, the progress bar then shows up as 1343 gems/2100, which is inaccurate. What am I doing wrong? D= (Thank you for your time if you happen to read this and reply!)