You’d be surprised. I’ve seen it happen a few times. There’s no silver bullet or a guarantee that happens all the time, but I have had my hands in doubling revenue 2 times by redesigning one page. Different solutions btw for different companies. Or a major major client that, because of the redesign, used the product and endes up spending a lot over the course of 2 years. And no I cant just replicate that on command but in some cases it’s not out of the ordinary.