9 - Chapters 16,17 i Saved The standard direct material cost per unit for Willis Group was $204 (= $51 per gallon x 4 gallons per unit). During the period, actual direct materials costs amounted to $2,737,380, materials used totaled 55,540 gallons, and 13,400 units were produced. Required: Compute the direct materials price and efficiency variances for the period. Note: Indicate the effect of each variance by selecting "F" for favorable, or "U" for unfavorable. If there Is no effect, do not select elther option. Price variance Efficiency variance