Warrants Inc. produces aluminum cans. Production of 12-ounce cans has a standard unit quantity of 4.7 ounces of aluminum per can. During the month of April, 450,000 cans were produced using 2,000,000 ounces of aluminum. The actual cost of aluminum was $0.15 per ounce and the standard price was $0.12 per ounce. There are no beginning or ending inventories of aluminum. Required: Calculate the materials price and usage variances using the formula approaches. Enter amounts as positive numbers and select Favorable or Unfavorable