Where can I find the calculation rules on a plan

Summary:

We have a plan that will be a per pay period amount (so biweekly)

Example if they want to contribute 10$ out of each paycheck - we have 26 PP so the Annual amount should show 260 but its showing 120 instead. I have looked at the Rates and Coverages - Standard rate but everything I have tried so far is not changing the annual amount.

Here is the Rate Setup

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