I need help with this question- I can get the number for the manual and collating but I think I am missing a portion of the equation that relates to

I need help with this question-

 I can get the number for the manual and collating but I think I am missing a portion of the equation that relates to the "60 percent" portion.  Can you help?

Automatic versus Manual Processing

Mid-Town Copy Service processes 1,800,000 photocopies per month at its mid-town service center.

Approximately 60 percent of the photocopies require collating. Collating is currently performed by

high school and college students who are paid $9 per hour. Each student collates an average of

5,000 copies per hour. Management is contemplating the lease of an automatic collating machine

that has a monthly capacity of 5,000,000 photocopies, with lease and operating costs totaling

$1,056, plus $0.04 per 1,000 units collated.

(a) Determine the total costs of collating 500,000 and 1,300,000 per month:

1. With student help:

 500,000- $

 1,300,000- $

2. With the collating machine:

500,000- $ ????

1,300,000- $ ????

(b) Determine the monthly volume at which the automatic process becomes preferable to the

manual process.