Lead Score Progression Report
Following on from my last request about setting up a lead score report (without Advanced Reporting), I'd love to know how those leads progress in score from one month to the next.
As an example, the below screenshot shows that there are 627 people in the 20-39 category in January - how can I find out how many of those progressed to 40+ in February, or even down to 1-19?

Or does this require Advanced Reports entirely?
Appreciate your help and guidance!