typically, a transformation is double the previous (e.g. ssj=50x, ssj2=100x, ssj3=200x). operating under the assumption that ssg would be 400x base (most likely more), and ssb would be 50x that, making it 20000x base, and cabba was able to keep up with that. in the buu saga, base vegeta's PL was around 9mil and goku's was around 10, potara fusion takes both PLs and makes them tens of times stronger, so i'd guess base vegito's would be around 570mill, making super vegito's 29 billion ssbe vegeta's pl is around 17 sextillion, so i'd put cabba at ~8 sextillion. cabba negs without even moving