Emily bought 12 bottles of water for £5.64.
Emily sells all 12 bottles for 50p each. 12 times 50p = 6
Emily sold 12 bottles of water for £6
Profit = selling price - cost price = 6 - 5.64 = 0.36
Profit percentage = [tex] \frac{Profit value }{cost price } * 100 [/tex]
= [tex] \frac{0.36 }{5.64 } * 100 [/tex]
= 0.0638297 * 100
= 6.4%
Emily's percentage profit = 6.4%
