"Hewlett-Packard’s acquisition last year of the British software maker Autonomy for $11.1 billion “may be worse than Time Warner,” Toni Sacconaghi, the respected technology analyst at Sanford C. Bernstein, told me, a view that was echoed this week by several H.P. analysts, rivals and disgruntled investors.

Last week, H.P. stunned investors still reeling from more than a year of management upheavals, corporate blunders and disappointing earnings when it said it was writing down $8.8 billion of its acquisition of Autonomy, in effect admitting that it had overpaid by an astonishing 79 percent."

Doesn't that mean they overpaid by 482 percent? It is true that the acquisition lost 79 percent of its value, but the editor seems to have gotten the math wrong here.