I've done some math's being board and came up with some rough numbers for Ruby Nora and Ren's weapons.

• For simplicities sake (and the fact that I cant look up how much 40mm grenades and armor piercing incendiary ammo is, even being in the navy) I've used the lowest common ammo cost for each weapon type.

• Ruby using a .50BMG, keeping 5 to 10 magazines on her at a time, each with 6 rounds each. The total cost comes to $165-330 worth of ready ammo. This assumes that Ruby has 4(8) mag's of special ammo (fire, ice, gravity, electric) and 2(4) of normal "Ball" ammo

• Nora Using 40x46mm, keeping 4 cylinders of ammo on her (6 rounds per cylinder) 24 rounds brings the total cost to $1800. This is assuming that she uses HEMP (high Explosive Multi-Purpose) Ammo.

• Ren using Dual 9mm Machine Pistol, with 24 rounds per magazine, with 10 magazines on him at a time. Total cost comes to $158.40. This assumes Ren uses 9mm JHP (jacketed Hollow Point)

• Jaune... has a sword... a whet stone costs about $25... once.

Again I've made some assumptions and have not counted ammo kept in there packs and excluded "super Special Ammunition"(like Nora's Jetpack round)