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db.collection.aggregate([{"$project":{"data":{"$map":{"input":"$details","as":"val","in":{"$cond":{if:{$or:[{"$eq":["$$val.label","Total Cost"]},{"$eq":["$$val.label","Estimated Monthly Rent"]}]},then:{"$toDouble":"$$val.value"},else:{"$toString":"$$val.value"}}}}}}}])