All programs make payments on a percentage of the base acres on the farm, no program makes payments on the actual planted acres. ARC-IC calculations are based on actual and historical farm yields. The actual planted acres on the farm in the crop year are used to weight the revenue numbers in the calculation. In that way, actual yields and planted acres do impact the program and payment calculations for ARC-IC. By comparison, ARC-CO uses actual county average yields and PLC uses the program or payment yields to calculate payments.