I've just submitted v3.2.0 of the "Sales Report" to the plugins for review; I'll post back here once it's available.

This version contains the following changes/bugfixes:

[CHANGE] Updated class selector for use under PHP 7.0 and later
[BUGFIX] Column-count "off" for CSV output when taxes are included.
[BUGFIX] Manufacturer filter was not being honored
[CHANGE] Applied PSR-2 styling to the various modules.
[BUGFIX] Correct year display for "Last Year" selection.