Tim’s Decanting Calculator
Buy 2,000 × (3) → decant → sell 1,500 × (4)
| Buy each (3) | Sell each (4) | Batch profit after tax |
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Calculation & source
Profit = 1,500 × [sell price − floor(sell price × 2%)] − 2,000 × buy price. GE tax is rounded down per potion (5m gp cap). Free NPC decanting; spare vial resale excluded. GE guide prices come from Jagex and are updated every six hours; they are reference prices, not live offers.
OSRS Wiki / RuneLite price data · refreshes every minute while open. The latest five-minute bucket must be no older than 15 minutes. Six buckets form each 30-minute estimate; High-side averages round up and low-side averages round down to whole gp.