How to get relative abundance of the features obtained from mass spectrometry from their respective intensity values?

Question

[deep771992chanda]

Hi there!!! I have GC-MS data from around 50 samples which I profiled with MZmine software that gives intensity values of the peaks (i.e. features). Now, I want to get the relative abundance of these features from the peak intensity values. How can I get that? Can anyone please help me?

Many Thanks