  We investigate the procedure for rescaling the DVCS cross section data
collected with different invariant mass, $W$, of the virtual photon - proton
system. We suggest a method which makes the rescaling more functional to
conduct statistical analysis on overall data. The study can be applied to
rescale data collected with different photon virtuality $Q^2$. Also we show a
dependence on $Q^2$ for the $\delta$ parameter, that is used to describe the
cross section as a function of $W$.
