How are cards selected and what is the probabilities for each pack rarity?

Each pack contains 5 cards that are selected based on the following probabilities:

		Card 1	Card 2	Card 3	Card 4	Card 5
Silver	% chance of Limited	100%	100%	100%	100%	0.00%
	% chance of Rare	0%	0%	0%	0%	99.00%
	% chance of Legendary	0%	0%	0%	0%	1.00%
Gold		Card 1	Card 2	Card 3	Card 4	Card 5
	% chance of Limited	100%	100%	100%	0%	0.00%
	% chance of Rare	0%	0%	0%	98.50%	98.50%
	% chance of Legendary	0%	0%	0%	1.50%	1.50%
Platinum		Card 1	Card 2	Card 3	Card 4	Card 5
	% chance of Limited	100%	100%	0%	0%	0.00%
	% chance of Rare	0%	0%	98.00%	98.00%	98.00%
	% chance of Legendary	0%	0%	2.00%	2.00%	2.00%