What is a correct calculation between two data columns in Omics Viewer?

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Dear,

i would like to ask about one option of the omics view. I selected type of values as "relative" and used data from "ratio of two data columns". Then, I defined the first column in my dataset as a denominator. I supposed that the result of view is a ratio of each other columns regarding the first one. But when I choose the "Add object to smarttable -> from omics data" option, I figured out that there is subtraction instead of ratio. Am I right or not?

Thank you in advance for helpful comments.