It says the drop is a result of its plant in Zhengzhou, China being affected by coronavirus restrictions.
Compared to October its revenue was 29% down, despite making a record 5.9 trillion New Taiwan Dollars (£160bn) from January to November.
That is an increase of 13.5% compared to the same period in 2021.
The electronics manufacturer, also makes game consoles such as the PlayStation 5, has cited "strong sales" and "better components supply" among the reasons for its growth, and blamed the drop in November on coronavirus restrictions.