you had it wrong last time
see what you did there
relative risk reduction is for advertising
will use Pfzier study numbers.
link
8÷21720 = 3.68 x100=.03 in Pfzier/BioNTe
162÷21726=.007 x100=.74 placebo
.74 - .03= .71 ARR
You can have a lot of fun with relative risk…
For example...