Safe and Sound Limited (SSL) produces chain link fencing for security fencing. The standard prime costs for each metre of fencing is given below: Standard prime costs: Standard Material Input cost per unit 400.0 metres wire $0.40 per metn $ 160.00 Standard labour costs 0.25 hour $42.00 per hour $ 10.50 on Total standard product cost per unit $ 170.50 During the year SSL produced 150,000 linear metres of their chain link product. Actual costs during the period: During the year, SSL purchased 75,000,000 metres of the raw wire used to make their product for a cost of $30,750,000. (This was the only stock used for all production this year) SSL used 61,200,000 metres of wire (all at the purchased price per metre) and they worked 36,750 Direct labour hours at a total cost of $1,572,510. Required: Calculate the Direct Labour Efficiency Variance NOTE: YOU MUST INDICATE IF THE VARIANCE IS FAVOURABLE (F) OR UNFAVOURABLE (U). FOR EXAMPLE TO ENTER 1000 UNFAVOURABLE, ENTER 1000U. NOTE THIS IS AN UPPER CASE LETTER, LOWER CASE (u or f) WILL LEAD TO A REDUCTION IN MARKS