The office photocopy machine is on the blink again. You are responsible for replacing the photocopier with a more powerful model and equitably charging each department its share of the cost of the new copier. The new copier costs $7,580 and is expected to produce 500,000 copies in its lifetime. You decide that each department's share of the cost should be based on the number of copies the department makes. The following record of use was recorded at the end of the first year. How much do you charge the four departments for the first year?
Department Number of copies made
Purchasing ............................. 8,711
Personnel ............................ 30,872
Payroll ............................... 32,521
Secretarial pool ..................... 52,896