Nitro examples: 10% and 475 trophies
| Number of attempts | Chance of at least one success | Total cost |
|---|---|---|
| 22 | 90.15% | 10,450 trophies |
| 29 | 95.29% | 13,775 trophies |
| 44 | 99.03% | 20,900 trophies |
Spectral · 25% · 500 Souls
The Helper walkthrough reports 500 Souls per Spectral consumable, a 25% application chance and a ×2.75 income multiplier. Older images show 1,000 Souls. Check the current Soul Extractor price: buying a consumable does not guarantee that the mutation will apply.
| Number of attempts | Chance of at least one success | Total cost |
|---|---|---|
| 9 | 92.49% | 4500 Souls |
| 11 | 95.78% | 5500 Souls |
| 17 | 99.25% | 8500 Souls |
How the calculation works
For n attempts with chance p, the probability of at least one success is 1 − (1 − p)ⁿ. Cost is attempts × unit cost. The target plan finds the smallest whole number of attempts that reaches your requested probability. Here p is the percentage divided by 100.
1 − (1 − p)ⁿ