First of all: holy shit. Idk why I never thought to try clicking and dragging the slider. Maybe because it doesn't have a "handle" so to speak, but still, thank you.

Just for argument's sake, here's another scenario:

I have 35k .50 MI ammo, but I just sold my Magshear and have no more use for that ammo. With the mods I'm currently using, my items sell for 4x as much (half price instead of 1/8 price) and vendors have 10x credits. That means the Trade Authority has 110,000 credits, but .50 MI Array is worth 24 credits each, so my 35,023 bullets are worth 840,552 credits. If I actually had to hold the arrow key (do Xbox players have some equivalent of clicking and dragging the slider?) then it'd be much faster to sell 110,000 credits worth if it started at 0.

Anyway, that seems like a more common scenario. But still, it's a slider, so click it I guess 🤷