Determine the percentage of DETs and FTRs changed as a result of the enhancement

The impact factor is determined by the percentage changes to the numbers of DETs and FTRs used by the transaction compared with the original numbers of DETs and FTRs.

Percentage DETs = Number of DETs added/changed/deleted / Number of DETs in original transaction * 100

Percentage FTRs = Number of FTRs added/changed/deleted / Number of FTRs in original transaction * 100

Changes in excess of 100% are possible when DETs and FTRs are added to a transaction.