Is there an easier way to accomplish this??

We have legacy data that will be put into our PDM system.  For Example: a file that is revision 05.  I have a Major Revision Match workflow that takes the Major Revision Variable (05) and if it equals 05 in a transition then it increments the Counter in PDM 6 times to equal 05.  That way the next revision will be 06 for the data card and PDM Revision Counter.   Thoughts??