This really depends on your location and the size of your store and how broad of a selection you have available.
£10
It depends. But quite a lot. E.g. basketball players make 1 to 4 millions.
The average sports engineer earns about 112,500 dollars a year. Thats awesome
250,000
85,000
50,000
about 119,220$ a year
10
Heaps!
$150,000
$500000 yearly
lots