I have to collate monthly hours flown by two units.
I need a break down in percent of each unit useage for the first 30 hours
and then again for the remaining hours above 30.
A sample below:

Columns:
A B
Unit Hours
Police 0:20
Police 0:30
Medical 0:10
Police 0:50
Medical 0:05
medical 0:55
and so on......

Cells: Total hours for the month
C2 D2
Police Medical

C8 D8
Police Medical
Percentage Percentage of hours
of hours used used under 30 hours
under 30hours.

Cells:
C10 D10
Percentage Percentage
use over use over
30hours 30hours

Hope that helps.
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AOU

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AOU