How much solar charging are you getting while driving?

A fairly simple process to tell with our system. We run 560W of panels and a Morningstar MPPT controller with a remote readout. Depending on the length of time we travel, sun conditions, and how much power we are using in the coach we've seen in excess of 400AHr'scoming off the solar system. That is also based on the house batteries being close to completely charged when we start the run. I can reset the controller to read amp-hours, watts or KW and can reset it to zero whenever I want.