Instead of using the same tax rate as a year ago, when it had an effective
tax rate of 25.5%, this quarter the tax rate was down 7.1% to just 18.4%.
Had INTC used the historical tax rate, it would have, surprise, missed.
Worse, INTC just cut its outlook, predicting revenue of $13.5 billion,
plus or minus $500 million, for the Q2, about $700MM below consensus estimates.
more complex than that, if they foresee lower earnings, different types of expenditures, etc, etc, you'd need a professional accounting firm to calculate that for you