[@Balthazar007] Righhhht I just can't read xD (thought it was a "+" rather than a... you know what, i can't even find the division sign on my laptop, so I'm not gonna type it)

Alright, I'll edit the new formula into my previous post :)

//edit: I'm currently in the middle of a few exams so I'll save posting for the weekend! Sorry about the delay, all :/

// // edit 2: Balth, I just realized that your suggestion, while valid and good, doesn't really matter in the grand scheme of things due to order of operations when it comes to multiplication and division, since both the (current level) and (next evolution level) values are getting multiplied in, whereas the (10) is getting divided in both cases.
Basically,

2/10*20 = 20/10*2 (since ten is the only number getting divided either way)

But, it does look nicer now and it's really kind of funny how slow I was to pick up on that math point so let's just laugh it off because I've already edited it in xD

//edit 3: ERK QUESTION: How do I calculate the level of Shanae's Pokemon who have been evolution shard-ed up?? Uh. Uhhhhh.