Enter the date of the cost in this field if you want to index (trend) the cost from this Base Date to the date of the report. Enter the date in the format mm/yyyy. The earliest date available is October, 1975.
If you take a cost from the Marshall Valuation Service or Commercial Cost Explorer, you should enter the date on the page from which you obtained the cost as the Base Date. Segregated Estimator indexes the cost from this date to the report date. You should also check the Local Multiplier box to localize the cost.