Super Crit

Stupid Question but I just want to clarify something. I get that if I do 1M Damage and I have a Critical Chance of 80% and a Critical Factor of x30, that I have an 80% Chance to do 30M Damage right?

So if I have a Super Crit Chance of 20% and a Super Crit Mult of x10, does that mean I have a 20% that my Critical Hit of 30M becomes 300M?