Required Information [The following information applies to the questions aisplayed below) Preble Company manufactures one product. its variable manufacturing overhead is appled to production based on direct labour-hours, and its standard costs per unit are as follows: 35.0 Direct ateriat , per Direct labour 5 hours at 516 per hour Variable overhead hours at 34 per hour Total standard cost per unit . . $95.00 The company planned to produce and sell 30.000 units in Mrch However, during March the company actually produced and sold 34 000 units and incurred the following costs: Purchased 175.000 kg of raw materials at a cost of $6.80 per kg. All of this materia was used in production b. Direct labour. 71000 hours at a rate of $17 per hout c. Total variable manufacturing overhead for the month was $340.090 5. What is the labour rate variance for March? (Indicate the effect of each variance by selecting * Por favoreble, "Ufor unfavorable, and None" for no effectie. Eero variance). Do not round Intermediate calculation