The impact factor for a transaction is determined from the percentage changes in the numbers of DETs and FTRs from table below:
| Percentage DETs | |||
| Percentage FTRs | <= 66.6% | <= 100.0% | > 100.0% |
| <= 33.3% | 0.25 | 0.50 | 0.75 |
| <= 66.6% | 0.50 | 0.75 | 1.00 |
| <= 100.0% | 0.75 | 1.00 | 1.25 |
| > 100.0% | 1.00 | 1.25 | 1.50 |
If the impact factor is 1.00 or greater, you should consider whether enhancing the transaction is still meaningful.