Estimated revenue is calculated from all of the winning bids on all of the ad impressions served on your website, it is displayed as net revenue.
Estimated Revenue in the new dashboard is much more accurate than the Estimated Revenue from the old one. Previously, Google AdExchange was estimated at $0.01 higher than the next highest bid in the header auction, which resulted in higher discrepancies. In the new dash, we pull actual revenue from AdExchange hourly and blend it with the estimated revenue from the other demand partners for a much more accurate estimate of revenue. Actual revenue will be added to a separate dashboard soon, but it is safe to assume a discrepancy of less than 3% between estimated and actual revenue in the new dashboard.