The amount of cards that isn't a club, 2, or 3 is 33 cards if we have a 52 card deck.
So our probability is 33/52
To get that to a percentage we need to change that to a decimal. To do that, we divide 33 by 52. If we do that we get 0.635 if we round to the nearest thousandth.
To change that to a percentage we multiply that by 100
0.635 times 100 equals 63.5
So the probability of picking a card that isn't a club, 2, nor 3 is 63.5%
Any questions?