I gather that the expressions in the left column are the conditions that correspond to the outputs in the right column, and you want to step through the conditions until you find the one that matches the single input value.
To handle that, first insert a legacy form field in the template or document you're working on. I would set it to Number type, format 0.00, name the bookmark Input, and check the boxes "Fill-in enabled" and "Calculate on exit". (The bookmark name is your choice, but make it short because you're going to have to repeat it a lot of times in the output field.)
In the output cell, you need a set of nested IF fields, with each condition nested into the FALSE part of the IF field before it. The first few nestings go like this:
{ IF { Input } <= 0.3 "2 - 10 %" { IF { Input } <= 0.4 "5 - 10 %" { IF { Input } <= 0.45 "5 - 25 %" } { IF { Input } <= 0.6 "10 - 30 %" <the next IF field goes here> } } }
The FALSE part of the most deeply nested IF field is just "70 - 100 %". Note that your list has a gap between 1.45 and ≥ 1.5 that should be expressed as IF { Input } ≤ 1.5 .
To make the form field operational, protect the document for filling in forms.
There is an alternative method that involves using content controls instead of fields, and writing a Document_ContentControlOnExit macro to take the place of the IF fields. This can be easier to write and to understand, and doesn't require locking the document. Post back if you want instructions for this.