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
Danny's Wok in Philadelphia sells chicken wings. You can order as many as you want, within limits (you can't order just one). If you want to do the math, it appears that wings are $1.15 each, or close to it, with a slight discount on the third wing, but that only works up to a point. Twitter math nerds are working diligently to discern the exact pattern.
That's a lot of WANGS, LOL!!!!!!
— Andrew Denniston (@Dru8806) October 24, 2018
You can see possible formulas, charts, graphs, and more math geekery surrounding the price of Danny's wings in the Twitter thread or the short version at Buzzfeed.