it's near the error margin and it wouldnt be the first time a news site or the developer would round up the sales number when it is between x.6 and x.9.
And it wouldnt even matter because the game will have those numbers in a few days anyway.
Also steamspy lags 3 days. With a game that is selling 50k to 250k copies a day, being 400k off is of little consequence.
i mean i like steamspy and am all for it but i think in this particular case it's out of the margin of error, that article was posted on dso on wednesday when steamspy was showing 5.4 million, it's now friday and steamspy shows slightly under 5.6 million, so unless it adjusts by 400k by tomorrow it's out?