The Dashboard graphs display the activity on each of your campaigns and accounts. If you manage more than one Initiative, you'll see the a graph displaying your return-on-ad-spend (ROAS) across all assigned CPA or CPC Initiatives. If you have selected a CPA goal, the Performance Overview table totals your impressions, clicks, conversions, click-through rate, conversion rate, CPA, and cost. If you have selected a CPC goal, the Performance Overview table displays the total number of impressions, clicks, click-through rate, CPC, and cost.
On the ROAS graph, Google AdWords campaigns are tracked with a pale blue line, Yahoo Search Marketing Panama campaigns with a pale purple line. The dark green line averages the activity on all your campaigns and accounts.
The data shows a moving average over time to smooth out any short-term fluctuations and highlights important trends in your account.