Term for measuring in fractions of 1 [closed]
Answering here from the perspective of a physical scientist.
Such comparisons are often dimensionless (say change in length over initial length, which is length/length = 1), and when they are we often say "fractional".
As in "the strain is the fractional change in length", or "here we compare the factional signal loss between...".
If you rewrite a percentage in the interval [0;1] then you get a proportion or simply a decimal number.
This, always keeping in mind that, for instance 0.1 = 10% = 100‰ = 1000‱