That's correct, my mistake on the infection rate of 90%. The 60% on the wiki figure is coming from an article written April 16. I did a bit of digging and found

That's correct, my mistake on the infection rate of 90%. The 60% on the wiki figure is coming from an article written April 16. I did a bit of digging and found a navy statement from the 22nd which said 50%. However given my error on the 90%, it seems much more likely that a large proportion of the people asymptomatic on the 22nd had caught it more recently than I was assuming, so the asymptomatic rate is probably a bit worse.