Answer:
Nik's percentage profit was of 130.8%.
Step-by-step explanation:
Percentage profit:
Profit multiplied by 100% and divided by the price she bought.
Bought:
72 pencils for a total cost of £4.68
Sold:
72 pencils for £0.15 each, so:
72*0.15 = 10.8.
Profit of:
10.8 - 4.68 = 6.12
Percentage profit:
6.12*100%/4.68 = 130.8
Nik's percentage profit was of 130.8%.