At the beginning of the year, X Compony expected to produce 3,500 units of its enly product. Its estimste of freed overhead was 512,000 , and its estimate of variabie overnead per unit was 56,71 At the end of the year, 2,600 units. were actially produced, with actual total overhesd cost of $30,295. What was X Company's total overiead flexible budget variance for the year [a positive bumber means a favorable variance; a negative number means an unfavorable variancel