>>39466208Pokemon go through inconsistent BST jumps through evolutionary stages. Nosepass is 375, and Floette is 371, yet Probopass is 525 and Florges is 552. Herdier and Duosion are both 370, but Reuniclus is 490 and Stoutland is 500. This is despite the fact that Stoutland evolves earlier than Reuniclus in the games (even in Gen V, Stoutland still had an equal BST to Reuniclus.) Drilbur is 328, and Stunky and Trubbish are both 329. Garbodor is 474, Excadrill is 508, and Skuntank is 479. Despite Excadrill evolving earlier than Garbodor or Skuntank, and its pre-evolution having a lower BST, Excadrill has the highest BST.
The point is, you can't truly predict what a Pokemon's base stat totals will be based on its pre-evolution, because they are wholly inconsistent. There are only a few indicators as to whether something gets a BST increase or not:
1) Logic. Does a Pokemon's design (logically) make it seem like it would have a high base stat in one or a few stats? Excadrill, for instance, has powerful claws that can dig through the ground, but Garbodor is just a sludge monster so logically Excadrill would have a higher attack. At the same time, Excadrill would also be somewhat bulky as a drill while Garbodor is just garbage.
2) Ease of acquisition. Typically easier to get Pokemon have lower BSTs, and the hardest to acquire Pokemon have higher BSTs. Pokemon that evolve via stone, location evolution, trade, or at a high level would have a much higher BST than lower-level ups, learning a certain move, friendship, etc., as those are harder to acquire; and rare Pokemon (such as one-offs or 5% encounters like Eevee typically get larger BST increases when evolving. (And the least common stone evolutions, such as for the Shiny, Dusk, and Dawn Stones usually get stronger than the base Leaf, Fire, Water, and Thunder Stone evolutions.) Similarly, Pokemon that cannot be acquired in the wild in the games they debut in usually have higher BSTs than non-wilds.