Xerox Holdings (XRX 11.56%) shares powered 12.6% higher through 12:20 p.m. ET on Thursday, despite missing analyst targets for both sales and earnings.Heading into its fiscal Q4 report, analysts had predicted this office printer company would suffer a steep decline in earnings versus last year -- and they were right. Instead of the $0.89 per-share adjusted profit that Xerox earned in Q4 2022, the company reported just $0.43 per share in adjusted earnings this time around. That was a decline of more than hal ...