A column by Rachel Sylvester in the Times of July 30th, 2013 on the always interesting subject of cost savings (albeit here in the governmental sphere rather than in shipping) has this to say on the proportions concerned: "...the computers at the Governmental Digital Service cost at least two thirds less than those in other departments. At the same time the average cost of a digital transaction is 20 times lower than using the phone, 30 times lower than the post and 50 times loser than a face-to-face arrangement." [Source: Rachel Sylvester, Geeks in jeans are the Treasury's new heroes, The Times, Tuesday July 30th, 2013]