c. AZ manufactures different kinds of marine equipment. The company uses a job costing system and manufacturing overhead is applied on the basis of machine hours. Estimated manufacturing overhead for the year is $1,434,000, and management expect that 32,500 machine hours will be used. The following events occurred in April: (a) The firm purchased marine parts for $4425 on credit. (b) 250 kgs of plastic (raw material) was for production. The raw materials were purchased for $2 per kg (c) 10000 metres of indirect material was requisitioned for production. It was purchased for $1 per metre. (d) The month's electricity bill of $15000 was paid in cash. (e) Direct labour costs incurred in April were $72,500. (f) April's insurance cost was $7500. Insurance is purchased for the year on January 1 every year.