Current Balance for Account

[2015-curas]

While checking my eBay account, I noticed a "current balance" in a red font in my account, but my invoice listed as 0.00 directly above it. 

Is this number in red going to be charged to my account at any time? 

Is this the seller fees? 

If so can I pay it now not later? 

Has it already been charged and it's simply notating what I've been charged? 

Thanks!!