| 0.01 21X cost | 0.000003 BTC |
| 0.1 21X cost | 0.000033 BTC |
| 0.2 21X cost | 0.000066 BTC |
| 1 21X cost | 0.000331 BTC |
| 5 21X cost | 0.001656 BTC |
| 10 21X cost | 0.003312 BTC |
| 50 21X cost | 0.016560 BTC |
| 100 21X cost | 0.033120 BTC |
| 1000 21X cost | 0.331203 BTC |
| 10000 21X cost | 3.312026 BTC |
| 100000 21X cost | 33.120260 BTC |