Paychex, Inc. (NASDAQ:PAYX) will release earnings results for its second quarter before the opening bell on Friday, Dec. 19.Analysts expect the Rochester, New York-based company to report quarterly earnings at $1.23 per share, up from$1.14 per share in the year-ago period. The consensus estimate for Paychex's quarterly revenue is $1.55 billion, compared to$1.32 billion a year earlier, according to data from Benzinga Pro.On Sept. 30, the company reported first-quarter sales growth of 17% year-over-year (Y/ ...