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The standard rate of pay is $15.10 per direct labour hour. If the actual direct labour payroll was $58730 for 4000 direct labour hours worked, the direct labour price (rate) variance is $1670 unfavourable. $1510 favourable. $1670 favourable. $1510 unfavourable. Swifty Co. produces wooden boxes. The company's standards per box require 6 boards, each costing $11 per board, and half of an hour of direct labour. The standard labour rate is $16 per hour. In August, Swifty Co. purchased 12040 boards for a total cost of $123900. It used 11460 boards to manufacture 1900 boxes. Total labour hours were 1100 hours, and total labour costs were $16200. What was the labour quantity variance for August? $2400 W $13360U $13360 F $2400F