How to compare new value and old value in Sugar 7 Enterprise Process ?

I did by creating a new module called previous_values.  Add the fields you want to compare into this module then use a logic hook on the saved module to store the "fetched" value into the previous value field.  Then you can compare the previous_value.field with the module.field to see if it was changed inside process author.  

Not ideal but it's a workaround.

Thanks for Brad.

But I need to solution with automation via Process. Because I have talked one example, but I need more other same type of field.

Thanks for Brad.

But I need to solution with automation via Process. Because I have talked one example, but I need more other same type of field.