How to recode payment term ?

You could make a table which you link to this table

You table would translate

key                          new value

1 to 030 days         1 to 030 days

1                            1 to 030 days

2 to 060 days        2 to 060 days

2                           2 to 060 days

Display new value in your report

You could also transform values in PowerQuery