; bears to (ii) the total acres of all covered commodities planted on those farms. (4) Yield conditions If the yield per planted acre for the covered commodity or historical county yield per planted acre for the covered commodity for any of the 5 most recent crop years, as determined by the Secretary, is less than 80 percent of the transitional yield, as determined by the Secretary, the amounts used for any of those years in paragraph (2)(A) or (3)(A)(i), as applicable, shall be 80 percent of the transitional yield. (5) Trend-Adjusted Yield (A) In general The Secretary shall adjust the yield determined under paragraph (2)(A) or (3)(A)(i), as applicable, using the same Trend-Adjusted Yield factor that is used under the endorsement under the Federal Crop Insurance Act ( 7 U.S.C. 1501 et seq.) for that crop and county. (B) Not available for crop or county If a factor described in subparagraph (A) is not available for a crop or county, the Secretary shall calculate and use a State or national Trend-Adjusted Yield factor for the crop, as determined by the Secretary. (6) Floor price In the case of county coverage, if the national average market price received by producers during the 12-month marketing year for any of the 3 most recent crop years is lower than the national average market price received by producers during the 12-month marketing year for the most recent 10 crop years for the covered commodity, the Secretary shall use the national average market price received by producers during the 12-month marketing year for the most recent 10 crop years for the amount in paragraph (2)(B). (7) Reference price In the case of individual coverage, if the national average market price received by producers during the 12-month marketing year for any of the 5 most recent crop years is lower than the reference price for the covered commodity, the Secretary shall use the reference price for any of those years for the amount in paragraph (3)(A)(i). (d) Payment rate The payment rate for a covered commodity, in the case of county