WBA wrong revenue information
I usually check the companies' financial data on another website and visit SeekAlpha to check a few ratios. Sometimes I come across data differences but never really dug into them. Today I decided to do it and found out what seems to be an error in SeekAlpha.
The revenue from WBA in 2019 and 2020 is showing on SeekAlpha website as 120,071 and 121,982 respectively however, their annual reports show it as 136,866 and 139,537
2019 revenue reported (page 38): https://seekingalpha.com/filings/pdf/13703317
2020 revenue reported (page 41): https://seekingalpha.com/filings/pdf/14443735
Other websites (Morningstar, Yahoo Finance) show the revenue in these years as 136,866 and $139,537 (which seems to be correct), however, Seekalpha and Guru Focus, show it as 120,071 and 121,982, which seems to be wrong. And it's a big difference!
Is it an error in SeekAlplha?