In order to establish the shortfall in production during the indemnity period, we examined the production budget of both plants for a 14 month period prior to the loss. This represents the time when ZCT 2 was first operated at full production capacity. The budgeted production was compared to actual production during the same period to establish a historic achievement ratio. This ratio was then applied to the budgeted production during the indemnity period to arrive at our projection of the likely production, had the loss not occurred.