In this research paper, we have derived the formula for both the changes in energy (δE) and entropy (δS) and thereafter calculated the change in entropy (δS) with corresponding change in energy (δE) taking account the first law of the black hole mechanics relating the change in mass M, angular momentum J , horizon area A and charge Q, of a stationary black hole, when it is perturbed, given by formula satisfying in the vacuum as δM = k 8π δA + δJ − υδQ, specially for Non-spinning black holes.