yo_john117 on 31 October 2011
| Week | Mass Effect 2 (360) | Mass Effect 3 (360) | Net Difference |
| 19 | 1,532/24,593 | 17,069/296,252 | 15,537/271,659 |
| 18 | 1,272/25,865 | ||
| 17 | 1,396/27,261 | ||
| 16 | 1,578/28,839 | ||
| 15 | 1,979/30,818 | ||
| 14 | 5,183/36,001 | ||
| 13 | 7,223/43,224 | ||
| 12 | 9,944/53,168 | ||
| 11 | 16,351/65,519 | ||
| 10 | 19,966/89,485 | ||
| 9 | 35,852/125,337 | ||
| 8 | 21,379/146,716 | ||
| 7 | 23,306/170,022 | ||
| 6 | 12,794/182,816 | ||
| 5 | 25,808/208,624 | ||
| 4 | 37,877/246,501 | ||
| 3 | 64,655/311,156 | ||
| 2 | 79,129/390,285 | ||
| 1 | 85,497/475,782 |
Mass Effect 3 pre-orders are higher now than ME2's was in it's 4th week.
