This lesson in economics comes to you via the McDonald’s mobile app…

A Small Coke is $1.19. Okay, I’m with ya so far.

A Medium is $1.59. Still logical.

 And a Large is $1.89. Yup, I hear ya loud and clear.

But wait. An Extra Small is $0.10 more than a Small while containing 40 less calories? I’m paying more for less??

And why is it listed to the far right of the sizing progression? The first time I saw it, I assumed from the E and its placement farther out from Large that it was Extra Large. Yes, I did see the name below, but, yanno, logic.

WTF, McD’s??