The dynamic range of the concentrations other of sample types, such as serum and plasma are usually presented as dilutions, either as fractions or as percentages. That is the case for Abcam’s TNF alpha ELISA Kit (ab208348). The protocol includes a table of ranges of plasma dilutions within the assay's dynamic range.
For plasma collected in heparin:
At the low end of the dynamic range, the ELISA could accurately detect the protein in dilutions equivalent to 1/16 (6.25/100, or 6.25 %).
At the high end of the dynamic range, the ELISA could accurately detect the protein in undiluted plasma (100/100 =1, or 100%)
The dynamic range is therefore presented as 6.25 – 100%