DS160 Non Immigrant Petition Data When Employer changes

I had my Non immigrant petition filed with my previous organization.
Current new PERM is under progress.
While filing DS 160 , what should i fill.
Do I need to specify my previous employer petition details.
As PERM with current employer is under progress . I dont have any details.
Please let me know

In the DS-160 you should provide the current I-797 approval notice number and date. If in doubt ask your employer’s immigration lawyer.