Hello sir/madam!
Thank you for the post!
In the blog, the comparison is done based on the end result, produced by a single fitting of two different modules (in this case how much damage will be applied). So the question being answer is “How much more damage is mitigated by module B compared to module A” (effectiveness comparison for single fitting).
Now, you have done a magnificent work, but you are answering a slightly different question. Your example answers the question of “How many of module A does it take to get the same result as a single module B” (required modules to reach same effectiveness). Something that is very useful in many cases indeed.
So module B is 40% more effective than module A
but
it takes around 1.32 A modules to reach the same effectiveness of a single module B.
We will try to be more clear in future on how we communicate these kind of details.
Thank you again for the post!