o The following materials standards have been established andard quantity per unit of output andard price 4.2 meters $ 18.40 per meter The following data pertain to operations concerning the product for the last month: Actual materiale purchased Actual cost of materials purchased Actual materials used in production Actual output mat is the materials price variance for the month? 7,200 meters $ 138,600 6,700 meters 1,550 units ple Choice