The correct option is C 3.33%
Given that,
Cost price of speaker (C.P) = ₹ 1500
Selling price of speaker (S.P)= ₹ 1450
As, C.P > S.P, so it made loss.
Loss = CP - SP
= ₹ (1500 - 1450)
= ₹ 50
∴LossC.P=Loss Percent100
501500 =Loss Percent100
% Loss = 3.33%