What do you mean? It literally says “sold”

Out of the article:
“Out of the 79 million, 2.5 million were sold during the fourth quarter. Sony shipped some 19 million units throughout the fiscal year, ending on March 31, 2018, alone.”

are you mad?

Vengeance is correct. The article confuses "sold" with "ships". Here is an excerpt from the Destructoid article they based their story on.

"Hot off the heels of Nintendo's big financial result briefing, in which they revealed that Super Mario Odyssey was the top-selling Switch game and that Switch hardware sales targets were being met, Sony has divulged some info of their own.

They've announced that they've shipped 79 million PS4 units worldwide, and that 2.5 million of those came from the fourth quarter, and 19 million were shipped throughout the fiscal year, ending in March 31, 2018. That's roughly a million less than the previous year, a sign that the avalanche of PS4 sales is slowing a bit."

What a vague figure. Zero context to it. Define "PC". Gaming branded PCs? General purpose machines? Professional machines? Solely Windows or alternative OSes as well?

It's meaningless to compare and it just seems like childish fanboyism to bring it up when it's not even relevant lol.