Proctor Cleaning Products manufactures a product using a process that allows for substitution between two materials, X1 and Y7. The company has the following direct materials data for its product: Standard costs for one unit of output X1Y768unitsofinputat$1.0012unitsofinputat$4.60 The following results were reported for January: Proctor has a policy of holding no inventories of any kind. Required: a. Compute materials price and efficiency variances. b. Compute materials mix and yield variances. Complete this question by entering your answers in the tabs below. Compute materials price and efficiency variances. Note: 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. Compute materials mix and yield variances. Note: 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. Proctor Cleaning Products manufactures a product using a process that allows for substitution between two materials, X1 and Y7. The company has the following direct materials data for its product: Standard costs for one unit of output X1Y768unitsofinputat$1.0012unitsofinputat$4.60 The following results were reported for January: Proctor has a policy of holding no inventories of any kind. Required: a. Compute materials price and efficiency variances. b. Compute materials mix and yield variances. Complete this question by entering your answers in the tabs below. Compute materials price and efficiency variances. Note: 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. Compute materials mix and yield variances. Note: 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