It seems to me that the pattern is 3.40 per 3 wings, with a 0.55 wing at each 25. The first two are 1.15, the third is 1.10. This pattern holds up to 75, where they add 5c for some reason, then subtract that 5c at 80. Subtract 5c at 125, add 5c at 150, add 5c again at 200. Shrug.

— SpooklopsDragon (@CyclopsDragon) October 23, 2018