How whole groups of cards are moving: what each rating's fodder costs, each Team of the Week and the current promo.
Each line is what an SBC pays for that rating: the cheapest cards of any rarity, up to where prices jump. Biggest move in 7d: 84 rated +30.8%.
% change since the start of the range.
A rating's fodder is its cheapest tradeable cards, of any rarity, up to the first price more than 25% above the one before it. Its line is the middle price of the cheapest 10 of them, so one odd listing can't move it. A dashed line has only one or two fodder cards. Missing hours are gaps, never zeros.