According to this CNN article (https://www.cnn.com/2019/11/04/tech/microsoft-japan-workweek-productivity/index.html https://www.cnn.com/2019/11/04/tech/microsof

According to this CNN article (https://www.cnn.com/2019/11/04/tech/microsoft-japan-workweek-productivity/index.html https://www.cnn.com/2019/11/04/tech/microsoft-japan-workweek...), they measured "sales by employee" and compared with the previous year.