The band, who have sold 50 million records worldwide over four studio albums, said that their sense of achievement comes from the work they put into a record rather than sales figures.
In an interview with Digital Spy, Champion confessed: "We've learnt now - especially given the climate - not to think about it too much. The sense of achievement we get comes from knowing we've tried to make the best record possible.
"I think that's the only real measure now. The days of selling tens of millions of copies has gone, so there's no point using that yard stick anymore. Of course, something inside us will still be keeping an eye on that."
Asked if they felt pressured to sell millions of albums from their record label EMI, he said: "Honestly, they don't put any pressure on us. We feel like we want to work as hard as we can while we still can.
"The pressure is self-inflicted to keep going - we're fully aware that there are millions of people who'd love to be in our position so we're going to make the best of it."
The group recently revealed that they don't see an end to the band in the near future.
Coldplay release their new album Mylo Xyloto today.
> Read Digital Spy's review of Mylo Xyloto
Watch the video for Coldplay's latest single 'Paradise' below: