WPA2 key testing

Hi,

I want to check that I'm doing WPA2 properly and see how long it'll take so I've captured my own WIFI handshake, obviously I know the password - AVBXVRWA.

I want to work out how long it should roughly take, how do I work out exactly how many iterations hashcat will go through to get there.

I know that total combinations are 28^8, but how do I do it for that specific password?

Assuming I use the mask ?u?u?u?u?u?u?u?u


Thanks in advance.