Mathematics for IGCSE & O level - Percentages (Section 2 - No. 35)
A shopkeeper buys potatoes at $1.40 per kilogram and sells them for $1.80 per kilogram. What is the percentage profit?
28.6%
30%
40%
35%
คำอธิบาย
The percentage profit is calculated as: ((Selling price - Cost price) / Cost price) * 100. In this case, (($1.80 - $1.40) / $1.40) * 100 = 28.6%.