khurram butt,pls read and try to understand the answers given by stubby1 and Clandestino.
A friend of mine made this calculation 15 years ago for the 42-500:
SHP=NP*TQ/4,17
Back to your example:
SHP for TO: 100% NP* 90% TQ/4,17 gives 2158 SHP
SHP for Climb
2%NP*110%TQ/4,17 gives 2163 SHP
The reduced NP for Climb and Cruise is a function of the Powemanagement selector switch helping to reduce the noise level.