The standard cost sheet for Chambers Company, which manufactures one product, follows: Direct materials, 30 yards at $2.00 per yard Direct labor, 6 hours at $25 per hour Factory overhead applied at 7e% of direct labor (variable costs = $75; fixed costs $30) Variable selling and administrative Fixed selling and adminisstrative $ 60 158 105 88 56 451 Total unit costs Standards have been computed based on a master budget activity level of 30.400 direct labor-hours per month. Actual activity for the past month was as follows: Materials used 190, eee yards at $2.20 per yard 29,50e hours at $26.80 per hour $550,eee 4,7ee units Direct labor Total factory overhead Production Requlred: Prepare variance analyses for the variable and fixed costs. Materials are purchased as they are used. (Do not round Intermedlate calculations. Indicate the effect of each varlance by selecting "F" for favorable, or "U" for unfavorable. If there Iis no effect, do not select elther option.) Direct materials: Price variance Efficiency variance Direct labor: Price variance Efficiency variance Variable overhead: Efficiency variance Fixed overhead: Production volume variance