<prompt> Translate the following text to SwahiliFigure 2 presents the consumer benefit from delivery scale economies net of inefficiencies which are expressed as a percentage of total postal costs.  <response>: Picha ya 2 inaonyesha faida ya watumiaji kutoka kwa uchumi wa kiwango cha utoaji, bila hasara, ambayo huonyeshwa kama asilimia ya gharama za jumla za posta. 