Dynamic $-$ Problem and answer changes with each attempt $($consider an Excel solution$)$ Tristan Industries makes farm equipment. The standard for a particular farm calls for $23$ direct labor$-$hours at $ $24$ per direct labor$-$hour. During a recent period $864$ farm calls were made. The labor efficiency variance was $$1,504$ Unfavorable. Hint: What would be the standard for one farm call? How many actual direct labor$-$hours were worked? $($in total$)$ Range will be $14,999$ to $24,999$ hours