CS2 Cases With Butterfly Knives: All 5 Cases, Real Odds and Cost per Try
Five CS2 cases can drop a Butterfly Knife. Here are the finishes in each pool, the real odds (1 in 385 to about 1 in 1,900), and what chasing one costs compared with buying it.
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How to Calculate Expected Value (ROI) of a CS2 Case: A Simple Worked Example
Expected value is tier chance × average skin price, minus what the case and key cost you. Here is the formula, a worked example, and why the median result is far worse than the average.