The percentage of the ROI is always the most important. To knowledgeable investors, the 100% return is going to look a lot better than the 10% return regardless of how much the actual return was. A similar example is in crypto. If you invest in a coin that is $0.01 and the next day it goes to $0.02, that's a 100% return even though it was only a 1 cent increase. If you invest in a coin that is $1,000 and the next day it goes to $1,100, that's a 10% return with a $100 increase. If you know about investing, you would much rather invest in the $0.01 coin because of the percentage growth. It's the percentage that matters.