it depends on what kind
Go to Beckett.com
While there are 'rare' football cards, not all football cards are rare.
around $600
At the co-op Holmes chapel chesire
are you selling them? I saw one sheet went for $99 on ebay
600-280 is 320. 320/600*100 is 53.33%
No the 1960 baseball cards are definetly more rarer than the 1960 Football cards 1960 Football cards are more rare.
Many of the football cards are valued in price close to $2 each. The amount will vary depending upon the exact card and its condition.
600-280=320, 320/600=.5333, .5333x100%=53.33% Answer: 53.33%
Get a copy of the Standard Catalog of Football Cards.
A collection of cards
600-280 is 320 left. 320/600, *100 is 53.33% left