Paper 1 February/March 2018 Economics (0455/12) IGCSE

Between 2005 and 2015 the number of late-night music clubs in the UK fell from 3144 to 1733. The causes were said to be the increase in the cost to clubs of planning regulations and the increase in alternative ways of meeting people on social media.
How would the effect of these causes be shown on a demand and supply diagram for entrance to late-night music clubs?