If you have a program line with incremental percentage rates for specific target bands, then you will be able to choose to make it retrospective or non-retrospective.
If retrospective, the percentage rate for the target band reached will be applied to all historic transactions that apply to the program line in question. If non-retrospective, the percentage rate is only applied to the transactions that are within the qualifying band.
For example, a program line has the following target bands:
| Turnover Target, GBP | Rate, % |
| 1,000,000 | 2 |
| 1,500,000 | 3 |
| 2,000,000 | 4 |
If the total for included transactions is £1,800,000:
- Enable will calculate the earnings as: 3% x £1,800,000 = £54,000 if the Retrospective? checkbox is set.
- 2% x (£1,500,000 - £1,000,000) + 3% x (£1,800,000 - £1,500,000) = £19,000 if the Retrospective? checkbox is left blank.