A shopkeeper earns 20% profit on his goods. He lost 20% of his goods during a theft. What is his profit or loss percent?

4% loss 4% gain 6% gain 6% loss

4% loss

Let the total number of goods be 100 and CP of each good = Rs 1  CP of total goods = Rs 100 SP of each good = Rs 1.2 Now, 20% of goods are lost. Then, 80 will be left. Total sale = 1.2 x 80 = Rs 96 Loss = CP - SP = 100 - 96 = Rs 4 Loss % = 4%