Dec 6, 2019 8:13 AM
That's a really broad benchmark to measure and in most cases you will not find that answer you are looking for easily, but there are plenty of reports on this that break it down. The reason is that most look at the milestones between the lifecycle stages to track conversion. So we look at leads becoming marketing qualified leads, who become sales accepted leads, turning into sales qualified leads with an opportunity and then closed opportunities (won/lost).
Hubspot did some research this themselves, but being that it's almost 4 years old, I wouldn't use the numbers but it should help explain the conversions at each point ( https://research.hubspot.com/charts/funnel-benchmarks-by-industry ).
Here's some other useful articles on the topic: