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Should you sit at a machine a previous player left in a progressed, +value state? This compares the value already banked in the machine against the expected base-game cost to harvest it.
Banked Value
Extra value already in the machine, on top of normal base-game return
Bet Size
What you'll wager per spin while harvesting
Harvest Spins
Estimated spins to realize or trigger the banked value
Base Game Return
Base-game RTP while you harvest
Capture Probability
Chance you actually realize the banked value
Estimate the Banked Value Carefully
The expected value assumes you correctly estimated the banked value and that it is EXTRA value on top of normal base-game return — not the full meter. For a progressive, that is roughly the current meter minus its reset; for stored bonuses, the cashable value of what is stored. If realization is uncertain, lower the capture probability.
+$96.00
Expected Value
$96.00
+EV of $96.00 after covering the harvest cost.
The banked value more than covers the cost to harvest it.
Harvest Cost
$24.00
Expected base-game bleed while you spin to realize the value.
Break-even Banked Value
$24.00
Minimum banked value needed for the play to be +EV.
Capture Ratio
5.0×
$ expected captured per $ of expected harvest cost.
Inputs
EXTRA value already in the machine, on top of normal base-game return (progressive overlay above reset, stored bonus credits, a near-full meter).
What you'll wager per spin while harvesting.
Estimated spins to realize or trigger the banked value.
Base-game RTP while you harvest (excludes the banked value itself).
Chance you actually realize the banked value. Lower it if realization is uncertain.
When a previous player walks away from a machine that holds extra value, sitting down can be +EV even though the base game alone is not. This tool weighs the banked value already in the machine against the expected base-game cost to harvest it: harvest cost = spins × bet × (1 − base RTP), and EV = banked value × capture probability − harvest cost.
This assumes you correctly estimated the banked value and that it is EXTRA value on top of normal base-game return. If realization is uncertain, lower the capture probability.