In these images, I'm really referring to the blue chart here. I apologize, but you might have to watch this short lesson video to understand the question. In the top row, the host is saying that a 55% drop in the businesses (doing poorly) that make up 70 percent of the index would be needed to bring the index down to a new low of 35% These numbers don't add up or I'm just not understanding how these indexes are calculated. He's not really saying what the peak was in 2019. Where can I get some info to better understand how these indexes are weighed, or balanced? If the index was at 34%, and it needs to move down to just 35% for a new low, how is the host coming up with a 55% drop for the business on the right of the chart? The math seems simple, but I don't understand the relationship between the numbers and where the market was and is going in his example. This is the video I'm referring to
