The PS4 had sold 13,760,700 units in the U.S. as of May 2016. If the PS5 has sold 3% more than that, that would put it at around 14,173,520.
As an alternate calculation, the PS3 sold 7,745,000 units. If the PS5 sold 83% more than that, that would put it at around 14,173,350.
So, that narrows it down to a range of only 170 units, which isn't bad considering we don't have anything more granular than whole numbers. Splitting the difference and rounding to the nearest 100 gives us a lifetime total of 14,173,400 for the PS5 in the U.S. as of May 2023.
We don't have official numbers for many if not most months, and the estimates I have combined with official numbers put it at 14,068,000, so I have it undertracked by a bit over 0.7%, or 105k units. That's spread out over 31 months, an average monthly error of 3387 units. Not bad with the estimating from myself and others.
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In accordance to the VGC forum rules, §8.5, I hereby exercise my right to demand to be left alone regarding the subject of the effects of the pandemic on video game sales (i.e., "COVID bump").
