The system will first check to see what Rate Basis the costs are by checking the [Rate Basis|RATE_BASIS] field in the Coverage Details of [IBPN]. Using that basis, the system will first calculate the annual cost and will then calculate the monthly cost. To determine the period costs the system will use the [Times Per Year|TIMES_PER_YEAR] amount defined for the Open Enrollment type Pay Category. 

The following scenarios depict how the Year, Month, Period costs are calculated using different rate basis. Each scenario uses a different frequency. 

!Scenario:  EE Deduction Rate of 22.60, Frequency is Bi-weekly (Times Per Year is 24)

||Rate Basis||	Year||	Month||	Period
|YR|	$22.60   (22.60 * 1)|	$1.88    (22.60 / 12)|	$0.94    (22.60 / 24)
|MO|	$271.20   (22.60 * 12)|	$22.60  (271.20/ 12)|	$11.30  (271.20 / 24)
|SM|	$542.40   (22.60 * 24)|	$45.20   (542.40 / 12)|	$22.60  (542.4 / 24)
|BW|	$587.60   (22.60 * 26)|	$48.97  (587.6 / 12)|	$24.48  (587.60 / 24)
|WK|	$1,175.20  (22.60 * 52)|	$97.93  (1 175.2 / 12)|	$48.97  (1 175.20 / 24)
|DY|	$5,876.00  (22.60 * 260)| 	$489.67  (5 876 / 12)|	$244.83   (5 876 / 24)
|HR|	$47,008.00  (22.60 * 2080)|	$3,917.33  (47 008 / 12)|	$1,958.67  (47 008 / 24)

!Scenario: EE Deduction Rate of 22.60, Frequency is Bi-Weekly (Times Per Year is 26)
||Rate Basis||	Year||	Month||	Period
|YR|	$22.60   (22.60 * 1)	|$1.88    (22.60 / 12)	|$0.87    (22.60 / 26)
|MO|	$271.20   (22.60 * 12)	|$22.60  (271.20/ 12)	|$10.43  (271.20 / 26)
|SM|	$542.40   (22.60 * 24)	|$45.20   (542.40 / 12)	|$20.86  (542.4 / 26)
|BW|	$587.60   (22.60 * 26)	|$48.97  (587.6 / 12)	|$22.60  (587.60 / 26)
|WK|	$1,175.20  (22.60 * 52)	|$97.93  (1 175.2 / 12)|	$45.20  (1 175.20 / 26)
|DY|	$5,876.00  (22.60 * 260) |	$489.67  (5 876 / 12)	|$226.00   (5 876 / 26)
|HR|	$47,008.00  (22.60 * 2080)|	$3,917.33  (47 008 / 12)|	$1,808.00  (47 008 / 26)

!Scenario: EE Deduction Rate of 22.60, Frequency is Once A Month (Times Per Year is 12)
||Rate Basis||	Year||	Month||	Period
|YR	|$22.60   (22.60 * 1)	|$1.88    (22.60 / 12)	|$1.88    (22.60 / 12)
|MO	|$271.20   (22.60 * 12)	|$22.60  (271.20/ 12)	|$22.60  (271.20 / 12)
|SM	|$542.40   (22.60 * 24)	|$45.20   (542.40 / 12)	|$45.20  (542.4 / 12)
|BW	|$587.60   (22.60 * 26)	|$48.97  (587.6 / 12)	|$48.97  (587.60 / 12)
|WK	|$1,175.20  (22.60 * 52)|	$97.93  (1 175.2 / 12)	|$97.93  (1 175.20 / 12)
|DY	|$5,876.00  (22.60 * 260)| 	$489.67  (5 876 / 12)	|$489.67   (5 876 / 12)
|HR	|$47,008.00  (22.60 * 2080)|	$3,917.33  (47 008 / 12)|	$3,917.33  (47 008 / 12)

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![Notes|Edit:Internal.HOW+ARE+COSTS+CALCULATED+IN+OPEN+ENROLLMENT] 	
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