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Calculating Percentages for
Hours Worked
The figures below are based on full time employment.
| FREQUENCY |
NUMBER OF HOURS BASED ON FULL TIME |
| Daily |
8 |
| Weekly |
40 |
| Monthly |
174 |
| Yearly |
2088 |
If a duty is performed the same amount of time each week, then the percentage
of the job that this duty represents may be calculated by dividing the number
of hours spent on the duty by 40.
For example, a duty that is done 8 hours each week represents the following
percentage of the job: 8/40 = .20 = 20%
If a duty is not performed every week, it might be more accurate to estimate
the percentage by considering the amount of time spent on the duty each month.
For example, a monthly report that takes 4 hours to complete represents the
following percentage of the job: 4/174 = .023 = 2.3%
Some duties are done only at certain times of the year. For example, budget
planning for the coming fiscal year may involve about 41 hours of work, but
this work is not performed every week or every month. It is done all at once
and not done again until the following year. To calculate the percentage for
this type of duty, estimate the total number of hours spent during the year
and divide by 2088. This budget planning represents the following percentage
of the job: 41/2088 = .02 = 2%. Below are percentages frequently used:
| Hrs.Wrkd* |
% Per Day |
% Per Week |
% Per Month |
| 4 |
50% |
10% |
2.3% |
| 8 |
100% |
20% |
4.6% |
| 10 |
|
25% |
5.7% |
| 15 |
|
37.5% |
8.6% |
| 20 |
|
50% |
11.5% |
| 25 |
|
62.5% |
14.4% |
| 30 |
|
75% |
17.2% |
| 35 |
|
87.5% |
20.1% |
| 40 |
|
100% |
23% |
*Total number of hours worked as it relates to the columns.
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