Wall Street brokerages expect that Plantronics, Inc. (NYSE:POLY) will post sales of $427.29 million for the current fiscal quarter, according to Zacks Investment Research. Two analysts have issued estimates for Plantronics’ earnings, with estimates ranging from $422.10 million to $432.48 million. Plantronics posted sales of $484.69 million in the same quarter last year, which would […]