Battlemage potion decanting profit

Bob Barter at the Grand Exchange decants Battlemage potion between dose sizes for free, so the price per dose of each size is what matters. Buying one dose costs (1) 2,948 gp, (2) 3,693 gp, (3) 2,829 gp, (4) 3,044 gp. The best direction now is to buy the (3) and sell the (2), keeping +110,667 gp per 1,000 doses after the 2% GE tax. 19,593 potions of all sizes traded in the last 24 hours.

Data age: the oldest price used here is from a trade 28h ago. Prices refresh every minute.

Best direction now

Buy (3), decant at Bob Barter, sell (2): +110,667 gp per 1,000 doses after tax.

Per dose: pay 2,829 gp, keep 2,940 gp after tax. 1,000 doses is 334 (3) potions in and about 500 (2) potions out.

Cost per dose by size

Potion	Buy now	Cost / dose	Sell now	Kept / dose	Vol / 24h	Buy limit
Battlemage potion(1)	2,948	2,948	2,210	2,166	8	2,000
Battlemage potion(2)	7,386	3,693	6,000	2,940	10	2,000
Battlemage potion(3)	8,488	2,829	8,300	2,711	384	2,000
Battlemage potion(4)	12,174	3,044	11,349	2,781	19,191	2,000

Cost per dose is the instant-buy price divided by the doses. Kept per dose is the instant-sell price minus the 2% GE tax, divided by the doses. Per-dose figures are rounded to the gp; profits use the unrounded values.

Every direction, per 1,000 doses

Buy	Sell	Profit / 1,000 doses
(3)	(2)	+110,667
(1)	(2)	-8,000
(3)	(4)	-48,583
(4)	(2)	-103,500
(1)	(4)	-167,250
(1)	(3)	-236,667

Buy limits apply per dose size, so the source size's limit caps how many doses you can move every 4 hours.