SECTION 30 - BASE
PREMIUM
RULE 30.1 - BASE
PREMIUM COMPUTATION
This rule is provided
as an explanation to develop base premiums for situations requiring additional
calculations or for limits other than those shown on the Rate Pages.
The figures shown in
the following interpolation examples are for illustration only and are
not the rates shown on the Rate Pages.
EXAMPLE I: $90,500
policy limit (nearest limits are $90,000 and $91,000)
Step
|
Procedure |
Example
Premiums
|
1 |
Find
the base premiums for the limits listed above. |
$90,000
= $229
91,000 = 233
|
|
|
|
2 |
Subtract
the smaller limit from the desired limit. |
90,500
-90,000
|
|
This
is the additional amount. |
500
|
3 |
Subtract
the smaller limit from the higher limit. |
91,000
-90,000
|
|
This
is the amount difference. |
1,000
|
4 |
Subtract
the smaller base premium from the higher base premium. |
233
-229
|
|
This
is the base premium difference. |
4
|
5 |
Determine
the additional base premium by the following formula: |
|
|
Additional
Amount
(Step 2)
|
x
|
Base
Premium Difference = |
|
Amount
Difference
(Step 3)
|
Additional
Base Premium (Step 4) |
|
Example: 500
X 4 = $2
1,000 |
|
6 |
Add
additional base premium to the smaller base premium. Round the result
to the nearest whole dollar.
|
|
229
|
+2
|
231
|
EXAMPLE II: $205,000
policy limit
If the desired limit
of liability is more than the highest limit shown, determine the base
premium as follows:
Step |
Procedure |
Example
Premiums
|
1 |
Find
the base premium for the highest limit shown in the rate page.($200,000) |
$745 |
2 |
Find
the factor for each additional $5,000 shown in
the rate page. |
.025
|
3 |
Subtract
the highest limit shown from the desired limit. This is the additional
amount. |
205,000
desired |
200,000
highest shown |
5,000 |
4 |
Determine
the factor for the additional amount by the following formula. This
is the adjustment factor. |
|
|
Additional
Amount x Each Additional
|
5,000
x .025 = .0250 |
|
5,000
$5,000 factor
|
5,000 |
5 |
Multiply
the base premium for the highest limit shown by the adjustment factor.
This is the additional premium. |
745
x .025 = $18.63
|
6 |
Add
the additional premium to the base premium for the highest limit shown.
Round the results to the nearest whole dollar. |
745.00
|
18.63
|
$763.63
= $764
|
|