Media playback is unsupported on your device

Why chocolate bars could get smaller

13 June 2012 Last updated at 14:28 BST

Chocolate bars could get smaller and less chocolatey because of price pressures, according to a report by the auditor KPMG.

With a chocolate maker working in the background, chocolatier Simon Dunn tells the BBC's Steph McGovern how businesses like his make more money out of cafes.