Get percentage data?

Question

Mathematics

There is an example:
5 - 30%
7 - 20%
10 -50%
It is necessary to build data from such an input list according to this principle:
What formula can be applied here or suggest, please, how to calculate.
0 9
10 143
15 1
100 2
200 1
250 8
350 1
400 70
450 2
500 7
550 3
600 1
650 1
2500 44

Answer 1

tyts