How do you know the Adobe colors are correct.
in coreldraw - creating spot color - percentage C-100%, M-100%, Y-100%, K-100%
in the name of 400%black
after publish pdf in coreldraw & check with pdf the separate spot color shown in same. but,
after converting all spot to process(no need to convert spot to process. but, want to know 400% is there)
it comes to 324%. but we want 400%.
but same file designed by illustrator it comes 400% after converting all spot to process
in detail - in illustrator after converting spot colour to process the percentage is same, but CorelDraw differ.
I have no idea why you would want to make CMYK 100 a spot color nor why after doing that you'd want to then convert back to CMYK.
Try to explain your work flow please. Are you printing spot color 9r CMYK?
Your problem is Illustrator is converting the 400% colors based on Illustrators color management. In reality everything is working as it should.
Why does someone need 400% CMYK black? That is sheer overkill in most circumstances. Many printing substrates have total ink limits well below 400%. I remember one large format print job with our old thermal inkjet printer where some customer provided artwork had 400% black applied to certain elements in the artwork. The black ink was literally starting to drip across the vinyl when it was rolling thru the printer. Even if the ink hadn't started to run the out-gassing times needed for ink that wet would have been ridiculous. Today we have a pair of latex-based printers and a flatbed printer. For "rich black" we do just fine with a standard CMYK 75-68-65-90 combo or 30-30-30-100.