Shigar da nisa ta hanya ɗaya, yawan man mai da farashin rukunin mai na gida don ƙididdige jimlar tazarar zagaye-zagaye, man da ake buƙata, jimillar farashi, farashin kilomita ko mil ɗaya da kowane mutum ɗaya. Sakamako sun keɓance kuɗin fito, kuɗin ajiye motoci da canje-canjen farashin gas na ainihi.