<tr ng-repeat="current in employeeRates">
   <td> current.person.name.value[0] </td>
   <td> current.person.age.value[0] </td>
   <td> {{ EmployeeRates.getFinanceType(current.person.cost_center.value[0]) }}
  </td>
</tr>

public getFinanceType(personCostCenter) {
    var deferred = $q.defer();
    this.costService.getFinanceData(personCostCenter)
    .then((result) =>
     console.log(result) // Gives the expected result i am in the need
    deferred.resolve(result)
    );
    return deferred.promise;
  }

public async getFinanceType(personCostCenter) {
  return await this.costService.getFinanceData(personCostCenter);
}