While using verbs gives a clear sense of your day-to-day tasks, using specific numbers illustrates what you were able to accomplish and how you helped make things more, better, faster, and so on, for your specific company.
In writing each bullet, ask yourself, how many sales did I make every month? How many hits did our site get after my redesign? How much more productive was our team after I streamlined some of our work-flow processes?
And don’t forget about percentages and growth. Consider comparative ways to present the data and choose the one that best shows the value you’ve been able to bring.