When (SP) > (CP) then there is a gain.
Gain = (SP) - (CP)
When (SP) < (CP) then there is a loss
Loss = (CP) - (SP).
Here SP>CP
hence gain.
Gain=SP-CP
=31,75,000-28,50,000
=3,25,000
profit percentage=(gain/CP)*100
Profit%= (3,25,000/28,50,000)*100
profit%=11.4%