Rexford Components shows the following overhead information for the current period: $107,140, 3/4 of which is variable Actual overhead incurred Budgeted fixed overhead Standard variable overhead rate per direct labor-hour Standard hours allowed for actual production Actual labor-hours used 22,453 $ 28 3,150 hours 2,880 hours Required What are the variable overhead price and efficiency variances and fixed overhead price variance? (Do not round intermediate calculations. Indicate the effect of each variance by selecting "F" for favorable, or "U" for unfavorable. If there is no effect, do not select either option.) Variable overhead: Price variance Efficiency variance Fixed overhead Price variance