Making Dragonstone dragon bolts (e)

Making Dragonstone dragon bolts (e) in OSRS: 10 × Dragonstone dragon bolts, 15 × Earth rune, 1 × Cosmic rune, 1 × Soul rune → 10 × Dragonstone dragon bolts (e). Profit right now: -7,466 gp after GE tax (input cost 25,506 gp).