On 24 Apr 2006, wrote:

I can't say exactly what the mark up is here for the newsagent
as he may get left with oddment batteries that he can't sell
but he makes a markup of about £2.50 on 50p (500%) if he sold
just one battery!

His total markup is in the thousands of percent.

Thousands of percent is a bit over-reactive; it's a few quid. You
can't really expect someone to make a living charging just a few
pence extra.

The only real bad thing about it is that the batteries on these
kinds of packs are normally all rubbish anyway...

Do your sums again. I think you may have slipped a decimal place or
two!

It is a 500% markup if he sells only one cell out of the 16 (or maybe
20) as I originally explained.

If he goes on to sell only half his cells at £2.99 each then he gets
approx £24. The 8 cells cost £0.50.

So at the halfway point he has a markup well over 4,000%. Cor!