If the boundaries are changed, protests objecting to the formation of the district made by owners of real property excluded by the change shall not be counted in computing a majority protest as hereinbefore provided, but written protests objecting to the formation of the district made by owners of real property remaining in the district and by the owners of real property added by the change and filed not later than the time fixed for hearing objections to such change shall be counted in computing a majority protest as hereinbefore provided.