The Fraction of Crop Treated (FCT) represents the assumption that the whole crop has been treated with the pesticide(s) under analysis. CARES NG® sets the fraction of crop treated of each raw agricultural commodity equal to 100% by default. The FCT data are stored in the column Percentage of Crop Treated of the Foods table; please refer to the Table types page for more information. This assumption can be refined by the user when tolerance, monitoring data or field trials are used as input residue values.