The following data reflect the current month's activity for Vickers Corporation. Actual total direct labor Actual hours worked Standard labor-hours allowed for actual output (flexible budget) Direct labor price variance Actual variable overhead Standard variable overhead rate per standard direct labor-hour $655,200 37,700 36,500 $ 23,400 P $157, 120 $ 4.20 Variable overhead is applied based on standard direct labor-hours allowed. Required: Compute the labor and variable overhead price and efficiency variances. (Indicate the effect of each variance favorable, or "U" for unfavorable. If there is no effect, do not select either option.) Direct labor: Price variance ta $ 23,400F $ 21,600 Efficiency variance Variable overhead: Price variance $ 655,200 XF 5,040 U Efficiency variance $