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Registry Math

JeffShermanJeffSherman Posts: 35
in PSA Set Registry Forum
OK, math was never my strong suit, so I have this question: is there some way to figure out what your set "GPA" would be if you added a hypothetical card to your registry set? like, hypothetically, if I add one more 34 Goudey common with a PSA 7 grade to my partially completed set, how would that affect my "GPA" and ranking? Thanks!

Comments

  • GriffinsGriffins Posts: 6,076 ✭✭✭
    Ok, this is the long version...

    Take the grade of the card, multiply times the weight. Do the same for each card. Then add all of those totals and divide by the set divisor - in your case 202.25
    This will give you your rating. Round to the nearest .01

    And the short and easy version....
    Or download one of JEB's spreadsheets (JEB's spreadsheets) and send him a paypal donation. If your set isn't on there I"m sure he'll add it if you request it.

    Always looking for Topps Salesman Samples, pre '51 unopened packs, E90-2, E91a, N690 Kalamazoo Bats, and T204 Square Frame Ramly's

  • marzmarz Posts: 1,601
    Anthony,for a guy who has only been collecting cards for 7 or 8 years you got it down bro. You have some nice stuff registered as well. Big time stuff for the Dodger fan too. Our deal is ON.....stay tuned for info.

    image
    live each day like it's your last but don't count on it!
  • gregm13gregm13 Posts: 5,798 ✭✭✭
    I created a spreadsheet that computes the registry % automatically. All I have to do is customize for a particular set. Let me know if you want a copy.

    Regards,

    Greg M.
    Collecting vintage auto'd fb cards and Dan Marino cards!!

    References:
    Onlychild, Ahmanfan, fabfrank, wufdude, jradke, Reese, Jasp, thenavarro
    E-Bay id: greg_n_meg
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