I think the bigger take away is that something drastically changed in October 2009 with regard to how much Merritt was being paid. I think it appears this is when MSM entered the picture. Fast forward to the end of January and MSM doesn’t want to deal with Merritt any longer. I don’t think the prosecution made a big enough deal of this situation. I think it is proof of Merritt’s imminent exit from the McStay business model.
That big change was going into business with MSM. From Sequieda's testimony, he didn't want to deal with Merritt anymore... but Sequieda also left shortly after that as he had another falling out with his father IIRC I wish we had heard from the Dad.
The change appears to show that Chase made less, but he would have no expenses. Just as an example, the fountain previous to Oct 2, was in August... the project was $7770... Chases $$$ was $5050 (65%). Is it reasonable to conclude that Chase made, delivered, and installed that fountain and pocketed all $5050 and had $0 for expenses, if that's exactly what Joey paid him. He may have deducted expenses like he did with MSM, but that doesn't show on the screenshot, so we don't know.
I don't know if this makes Chase and less or more guilty, but it does explain the money a bit better being able to see that column and see what MSM was paid, and the 2 added together is 65%.
ETA: I shouldn't say he had no expenses after MSM was involved... I think he could have been responsible for the electrical/plumbing and maybe even the wood for crating the projects to be shipped. But I am not 100% sure.