Monthly wages for compensation are set by prior 12 month averages, comparable employee earnings, or recent service earnings. The section defines monthly wages for compensation and sets three calculation methods: (a) one twelfth of total wages for the last twelve months where service is at least twelve months; (b) the twelve month average earnings of a comparable employee where the immediate continuous service was under one month; and (c) thirty times total wages in the last continuous service period divided by the number of days in that period where other methods do not apply. A period is continuous if absences do not exceed fourteen days.