Calculation

Salary efficeny formula

Inflation = ( State 2[CPI] - State 1[CPI])/State 1[CPI])

(Inflation +1)* Cost of living ) = New cost of living

((New salarly - New cost of living)/(Salarly - Cost of living ))*100

Change in HDI , Happines index

(State2[HDI]-State1[HDI]) / State1[HDI] = HDI change

(State2[Happines Index]-State1[Happines Index]) / State1[Happines Index] = Happines Index change