Zoom Q121 recap

Let’s go back to Saul’s estimate. He not only nailed this Q’s actual, but he also nailed next Q’s estimate. He guessed next quarter might see 250% revenue gain after Zoom has had 3 full months of this stay-at-home, instead of only a month and a half. Well, guidance for next Q was $495-500M, more than DOUBLE Wall St’s expectations. At the high end, that means ~243% rev growth YoY next Q. (Last few Qs of revenue = 122M, 146M, 167M, 188M, 328M.) A little bit of a beat and you hit Saul’s initial stab on the nose. Well done, sir! A toast to you!

I have no clue how Saul nailed this number. I am trying to become a better investor, but I have zero insight into how get came up with 250%. Is it obvious? Can someone help me out?

Thanks so much!
Oli