delete trailing characters from tag (regex help)

First look here:
BPM-Nachkommastellen runden ... ?

Round BPM to integer.mta

Action #1:
Action type: Format value
Field: BPM_MIXMEISTER
Formatstring: $if2(%BPM_MIXMEISTER%,%BPM%)

Action #2:
Action type: Format value
Field: BPM
Formatstring: $left($replace(%BPM%,.,)00,$add($len($div(%BPM%,1)),2))

Action #3:
Action type: Format value
Field: BPM
Formatstring: $ifgreater($mod(%BPM%,100),44,$add($div(%BPM%,100),1),$div(%BPM%,100))

DD.20071026.1710.CEST