Percentage distribution based on another distribution

I’m looking for a solution which I think should be simple. I’ve been breaking my brain over this and that’s why I'm posting this question.

What I need to do is distribute a percentage distribution on 4 lines, based on a different distribution. I’ve added the file. I the first block you see a distribution through time. In the second block I only have the starting point, and it needs to get the same flow as the first block based on the new values.
All 4 lines should always add up to 100%.

Any ideas on how to get this done?