Ralph Rover is a small company that manufactures special heavy equipment for use in under water oil fields. The line workers are specially trained and earn $35/hour. The company uses job order costing and applies manufacturing overhead on the basis of labor hours. At the beginning of the month, the following estimates were made:

Estimated Manufacturing Overhead Costs - $360,000

Estimated Direct Labor Hours - 900

Beginning balances for inventory accounts were as follows:

Raw Materials - $80,000

Work in Process - $21,000 Job 411

Finished Goods - $150,000 Job 410

The following transactions took place during the month (all purchases and services were acquired on account):

a. Raw materials were purchased for use in production, $200,000.

b. Additional raw materials were requisitioned for use in Job 411, $100,000.

c. Raw materials were requisitioned for use in Job 412, $85,000.

d. The factory incurred $63,000 in utility bills.

e. Headquarters incurred $7,000 in utility bills.

f. The record for Job 411 indicated an additional 675 labor hours this month.

g. The record for Job 412 indicated 300 labor hours this month.

h. Jobs 411 and 412 were completed during the month.

i. Jobs 410 & 412 were sold for $750,000.

j. Advertising costs for the month were $136,000.

k. Executive salaries for the month were $110,000.

l. The factory managers salaries totaled $90,000.

m. Indirect material requisitions totaled $70,000.

n. $150,000 of depreciation on the factory equipment was expensed this month.

Please explain to me "in detail" how each number was calculated and discovered. Please I need a lot of details as this is a practice set for my exam tomorrow.