| Element | Missed Instructions | Cov. | Missed Branches | Cov. | Missed | Cxty | Missed | Lines | Missed | Methods |
| Total | 27 of 240 | 88% | 2 of 15 | 86% | 3 | 14 | 3 | 32 | 1 | 5 |
| toLetters(int) | | 78% | | 75% | 1 | 3 | 1 | 13 | 0 | 1 |
| toRoman(int) | | 75% | | 83% | 1 | 4 | 1 | 10 | 0 | 1 |
| NumberFormatter() | | 0% | n/a | 1 | 1 | 1 | 1 | 1 | 1 | |
| static {...} | | 100% | n/a | 0 | 1 | 0 | 2 | 0 | 1 | |
| getNumber(int, int) | | 100% | | 100% | 0 | 5 | 0 | 6 | 0 | 1 |