Calculating Grades within a registry set
I recently started a 1948 Bowman football set seeing I had 6 graded and was looking to add a badge.
When i added them to the set,my grade total was 3.816.How does PSA caculate the actual grade?
I thought it would be the cards total grades divded by the number of cards entered.
My grades were 4,6.5,3,5,5,and 6 when I divde the 6 cards by 29.5 i get 4.916.
Does it have something to do with the total amount of cards the set requires?