Description: Excess ratio refers to the calculation of expected losses in excess of some stated limit. This paper suggests methods for calculating excess ratios in the practical situation without the laborious calculations which the techniques of Dr. Kahn's paper, 'An Introduction to Collective Risk Theory and Its Application to Stop Loss Reinsurance,' would seem to require, and as an alternative to the Monte Carlo simulation technique which would also seem to be impractical to use on a case by case basis in experience rating.