Prem purchased an old printer for â‚¹3,200 and spent â‚¹600 on its repair. He sold it for â‚¹4,280. His profit percent is closest to : (correct upto two decimal places)

12.63%

The cost price of the printer = 3200

Repair cost = 600

Total cost price of the printer = 3200 + 600 = 3800

The selling price of the printer = 4280

Profit% = (4280 - 3800) × \(\frac{100}{3800}\) = 12.63%