I'm in the wrong business!
Someone is selling Liuzhou's famous brand throat lozenges, "Golden Throat" on Ebay. £14.99 for a pack of 8. That is £1.87 per packet. I can wander downstairs right now and buy a packet for about 7 pence! 96% markup (if my maths is correct!). They also have the nerve to charge £9.74 for postage.
Anyone want to sample a bottle of the local beer? I'll send you one. Only £44.99 plus £27 postage.
2400% Could be. The only maths I know is that I had one too many beers last
night again.