Hi all,
There could probably be a number of different reasons but it looks like you are using different color profiles in Draw and Illustrator, ISO Coated and U.S. Web Coated, for a start.That could cause some differences when converting, I suppose.
Please guide me how will change my color profile in coreldraw which is convenient to set 400%black as a spot color in coreldraw.
Sorry, I have no idea how to make it stay "400%" but I'd make sure every single color management setting in Draw matches the ones in Illustrator for a start, if Illustrator's results are what you want.
He could set color management to simulate off but that's as smart as poking hole in a submarine.