Step 1 : Find C.P. of the article
Given : S.P. = ₹ 1,200
It is stated that C.P. is 54 times of its S.P.
∴ Cost Price of article =54×1,200
=5×300
=₹ 1,500
Step 2: Find profit / loss as percent
Since C.P.>S.P.
∴Loss=C.P.−S.P.
= ₹ 1,500 - ₹ 1,200
= ₹ 300
Loss percent =LossC.P.×100
=3001500×100
=20
Hence, the loss as a percent is 20 %.