The CPS is based on the following formula:\documentclass[12pt]{minimal}\usepackage{amsmath}\usepackage{wasysym}\usepackage{amsfonts}\usepackage{amssymb}\usepackage{amsbsy}\usepackage{mathrsfs}\usepackage{upgreek}\setlength{\oddsidemargin}{-69pt}\begin{document}$${\text{CPS}} = \frac{{\text{Number of PD-L1 positive tumor cells}} + {{\text{Number of PD-L1 positive mononuclear inflammatory cells}}}}{{\text{Total tumor cells}}}\times {1}00 = 0 - {1}00.$$\end{document}CPS=Number of PD-L1 positive tumor cells+Number of PD-L1 positive mononuclear inflammatory cellsTotal tumor cells×100=0-100. Here, CD274 is linked to neoplasm.