If the cost price of a camera is 75%

Let the selling price (SP) = 100 units
Cost Price (CP)= 75% of SP = 75
Profit = SP − CP = 100 − 75 = 25
Profit % = $\frac{\text{Profit}}{\text{CP}} \times 100 = \frac{25}{75} \times 100 = 33\frac{1}{3}%$
Answer = $ 33\frac{1}{3}$ %