All assistance grants made under this chapter shall be reconsidered as frequently as may be required by the rules and regulations of the state board. After such further investigation, the amount of assistance may be changed or assistance may be entirely withdrawn if the state commissioner or county department finds that the recipient's circumstances have altered sufficiently to warrant such action. The county department may at any time cancel and revoke assistance for cause and it may for cause suspend assistance for such period as it may deem proper. Whenever assistance is thus withdrawn, revoked, suspended or in any way changed, the county department shall at once report to the State Department such decision together with the record of its investigation. All such decisions shall be subject to review by the state commissioner as provided in Section 43-29-17.