[AgentConundrum]

4 hours ~= 124.75 cents/hr

7 days ~= 4.16 cents/hr

30 days ~= 2.08 cents/hr

90 days ~= 1.38 cents/hr

This is based on the full 24 hours per day. If you do it based on "usable" time, which I've defined as 8 hours a day, it looks like this:

4 hours ~= 124.75 cents/hr

7 days ~= 12.48 cents/hr

30 days ~= 6.25 cents/hr

90 days ~= 4.17 cents/hr