qrtly revenue growth (YOY): this is comparing the revenue generated during quarter 1 of 2005 with quarter 1 of 2006. So, for the 3 months in 2005 that make up quarter 1, lets say they generated 50 million in revenue. And for quarter 1 of 2006, they generated 75 million in revenue. Well, they grew their qrtly growth by 50% then. This can also be applied to EPS, and so on.