Average per Month

Another useful measurement when analyzing incidents is to determine the average number of incidents per month or the average impact of incidents per month. Impact can be measured using the total cost of incidents or the total days lost of incidents. The formula for calculating the average is based on knowing the number of months being analyzed and the count or impact (number of days lost) over the number of months being analyzed. For example, if you were looking at a two year period, the number of months would be 24. The formula is:

Average Frequency per Month: Total Count of Incidents/Number of Months Being Analyzed

Average Impact per Month: Total Impact of Incidents /Number of Months Being Analyzed