An EL expression for a goal plan with a goal weight

Need to validate the Goal Plan from Employee screen ONLY using el expression

If we are calculating the total weight of the goal plan, how do we write the EL expression for the following condition?

if the goal plan id is '300000177892002' then #{row.Weighting / 2}

goal plan id is '300000177892003' then #{row.Weighting / 3}

goal plan id is '300000177892004' then #{row.Weighting / 4} like we need EL Expression.

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#{pageFlowScope.params['pSelectedGoalPlanId'] !='300000177892002')} then #{row.Weighting / 2}

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I have got 3 types of Goal plans X and Y ,Z

The total weight (summation) of the goals should be:-

X : 50 Total weight (summation) for employee on grade 15.