Potion Decanting

Buy the cheapest doses, decant them up to (4) with Bob Barter at the Grand Exchange (free, members only), then sell the 4-dose. Profit / (4) is the margin on a single potion; the RM Score (0–100) rates the best and quickest flips — it weighs the realistic total profit against (4)s / day, how fast the flip fills when you factor in both buying the doses and selling the (4)s. So a fat margin you can only trade a handful of ranks below a thinner one that moves in volume. Expand a row to see each dose (1/2/3) and how buying them together stacks up. Prices are 4-hour averages. Click a column to sort.