Question 30 2.1 points Culinary Krechen Supply produces bamboo cutting boards. The standard material cost for the bamboo used in each lamp is 518 per square foot. Each board requires 3 square feet of bamboo. In August, the August for bamboo? company produced 1.200 cutting boards. There were X400 square feet of bamboo used during the month. The bamboo used had an actual cost $20 per square foot. What was the materials quantity variance in 13.600 favorable $400 unfavorable $1,400 unfavorable 54.000 favorable