The Bay of Bengal Vessel Company has established the following budget for producing one of its hand- blown vases: Materials (silica) 2 kilograms @ 1.25 per kilogram 1.5 Labor hours @ $15.00 per hour In March of the most recent year, Vessel produced 300 vases using 650 kilograms of materials. Vessel purchased the 650 kilograms of materials for $845. Labor costs for March were $7,200 for 480 hours worked. What were Vessel's efficiency (labor) variances for March? O 0 O Favorable/Unfavorable 62.50 Unfavorable 450.00 Unfavorable 450.00 Favorable