Transparency into grading

I just took an Accessibility assessment and these were my thoughts now that I have an idea of the results of the test.

Here are my test results:
I got 21/25 questions right
Score: 97%
Standing: Top 5% "in the world"

Without knowledge of the weights, a breakdown of the questions wrong and right, and any sort of transparency to the grading system, this all feels very arbitrary.

I am someone who likes to understand the science behind the theory and when the results have no backing, it diminishes the outcome even if its positive.

I'll take the higher score but I can't help but feel that it is somewhat hollow knowing that 21/25 doesn't equal 97%. I don't even know which 4 questions I got wrong and how they were wrong.

Thanks for considering my feedback,

De