In reviewing activity for July, the controller of Mathis, Inc., collected the following data concerning direct materials: Actual production Direct materials purchased (actual) Standard cost of materials purchased Standard direct materials costs per unit produced Standard price times actual amount of materials used S 104.400 units $1,645,600 1,561,000 14.4 $1,412,950 Required: Compute the direct materials cost variances. (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.) Direct Materials Price variance Efficiency variance Cost variances