| 0.01 21 cost | 0.011388 BTS |
| 0.1 21 cost | 0.113885 BTS |
| 0.2 21 cost | 0.227769 BTS |
| 1 21 cost | 1.138847 BTS |
| 5 21 cost | 5.694236 BTS |
| 10 21 cost | 11.388472 BTS |
| 50 21 cost | 56.942358 BTS |
| 100 21 cost | 113.884716 BTS |
| 1000 21 cost | 1,138.847165 BTS |
| 10000 21 cost | 11,388.471649 BTS |
| 100000 21 cost | 113,884.716485 BTS |