ROI on a raid is just the value you get divided by the cost in effort and time. I log loot value, XP earned, kill count, and the number of attempts, then I calculate (loot + XP + kill bonus) ÷ (time spent + resources used). If that ratio drops, I tweak the raid strategy or the gear loadout. It’s like an A/B test on a dungeon run—track every metric and iterate until the conversion funnel of kills to loot hits the sweet spot.