Question about Blazblue speed

[ZeoParadox]

I see that Yuki Terumi is listed at MHS+ for "At least quadruple digit Mach, was struck by Ignis in 1/480,000th of a second while knowing he had to be killed and infiltrated Takamagahara in a short interval"

I'm not good with calcs and all, but could I actually see some calculation that places them there from that feat?

Here is a link to the profile https://vsbattles.fandom.com/wiki/Yuki_Terumi_/_Hazama