Case(1):
CP = ₹10, SP = ₹12
Since, CP < SP
So, it is the case of profit.
profit %=SP−CPCP×100
=12−1010×100
=210×100=20
Case(2):
CP = ₹5, SP = ₹1
Since, CP > SP
So, it is the case of loss.
loss%=CP−SPCP×100
=5−15×100
=45×100=80
Case(3):
CP = ₹20, SP = ₹15
Since, CP > SP
So, it is the case of loss.
loss%=CP−SPCP×100
=20−1520×100
=520×100=25
Case(4):
CP = ₹50, SP = ₹100
Since, CP < SP
So, it is the case of profit.
profit%=SP−CPCP×100
=100−5050×100
=5050×100=100