explain standard cost standard hours?

Actual Hours 7,290 Actual Cost Standard Cost Actual Rate Actual Hours Standard Rate Standard Hours 9 7,290 8.5 6,160 = 65,610 61,965 Direct Labor Rate Variance 65,610 $ 61,965 $ 3,645 Direct Labor Time Variance 61,965 52,360 9,605 x Standard Rate x 8.5 52,360