Lesson 2 of 4 · Grade 8 Mathematics
Commercial arithmetic
18 min
Profit and loss
- Profit = selling price (SP) - cost price (CP)
- Loss = CP - SP
- Percentage profit = profit ÷ CP x 100
A trader buys a radio at KES 2,000 and sells it at KES 2,500. Profit = 500. Percentage profit = 500/2,000 x 100 = 25%.
Discount
A reduction on the marked price. A dress marked KES 1,200 sold at a 15% discount: discount = 180, price paid = KES 1,020.
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