<prompt> Translate the following text to EnglishKwa mfano, kama mchango wa mtu mmoja unakamilisha kiasi cha 2,800, uhifadhi wa kitaifa utaongezeka kwa 2,800 - ongezeko la 4,000 katika uhifadhi wa kibinafsi minus kupungua kwa 1,120 katika uhifadhi wa serikali.  <response>: , their contributions represent new saving, national saving would increase by 2,880-the 4,000 increase in personal saving less the 1,120 decrease in government saving. 