I didn't downvote it, but the calculation appears wrong: the $852.7B are nominal 1967 GDP; in 2012 dollars, this would correspond to more than $4T, so IBM was l

I didn't downvote it, but the calculation appears wrong: the $852.7B are nominal 1967 GDP; in 2012 dollars, this would correspond to more than $4T, so IBM was less than 5% of GDP even back then.