could you help me with this managerial accounting problem? thanks

Koontz Company manufactures a number of products. The standards relating to one ofthese products are shown below, along with actual cost data for May. Standard Cost per Actual Cost per Unit Unit Direct materials: Standard: 1.80 metres at $3.00 per metre $ 5.40 Actual: 1.80 metres at $3.30 per metre $ 5.94 Direct labour: Standard: 0.90 hours at $18.00 hour 5 16.20 Actual: 0.92 hours at $17.50 per hour 16.10 Variable overhead: Standard: 0.90 hours at $5.00 per hour $ 4.50 Actual: 0.92 hours at $4.50 per hour 4.14 Total cost per unit 5 26.10 5 26-18 Excess of actual cost over standard cost per unit $0.08 [ The production superintendent was pleased when he saw this report and commented: \"This $0.08 excess cost is well within the 2% limit management has set for acceptable variances. It's obvious that there's not much to worry about with this product." Actual production for the month was 12,000 units. Variable overhead cost is assigned to products on the basis of direct labour-hours. There were no beginning or ending inventories of materials. Required: 1. Compute the following variances for May: a. Materials price and quantity variances. (Input all amounts as positive values. Indicate the effect of each variance by selecting "F" for favorable, "U" for unfavorable, and "None" for no effect (i.e, zero variance).) Materials price variance Materials quantity variance b. Labour rate and efficiency variances. (Input all amounts as positive values. Indicate the effect of each variance by selecting "F" for favorable, "U" for unfavorable, and "None" for no effect (i.e, zero variance).) Labour rate variance Labour efficiency variancec. Variable overhead spending and efficiency variances. (Input all amounts as positive values. Indicate the effect of each variance by selecting "F" for favorable, "U" for unfavorable, and "None" for no effect (i.e, zero variance).) Variable overhead rate variance Variable overhead efficiency variance2. How much of the $0.08 excess unit cost is traceable to each of the variances computed in Requirement 1 above. (Input all amounts as positive values. Indicate the effect of each variance by selecting "F" for favorable, "U" for unfavorable, and "None" for no effect (i.e., zero variance). Round your answers to 2 decimal places.) Materials: Price variance Quantity variance Labour: Rate variance Efficiency variance Variable overhead: Rate variance Efficiency variance Excess of actual over standard cost per unit3. How much of the $0.08 excess unit cost is traceable to apparent inefficient use of labour time? (Input all values as positive amounts. Indicate the effect of each variance by selecting "F" for favorable, "U" for unfavorable, and "None" for no effect (i.e., zero variance). Do not round intermediate calculations. Round your final answers to 2 decimal places.) Excess of actual over standard cost per unit Less portion attributable to labour inefficiency: Labour efficiency variance Variable overhead efficiency variance Portion due to other variances