You can put this solution on YOUR website! The % gain ( or loss ) is: where = selling price = cost
( for a certain numberof items )
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For convienence, I will say that the cost
price of 11 shirts is $110.
That means the cost of 10 shirts is
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The selling price of 10 shirts is $110
( the cost of 11 shirts )
Plug into formula:
10% gain