Relative Importance Index is calculated for each of the indicators and ranked accordingly. The RII derived to summarize the importance of each indicator:

Where,

W = weighting as assigned on Likert’s scale by each respondent in a range from 1 to 5, where 1 = no impacts, 2 = negligible impact, 3 = marginal impact, 4 = moderate impact and 5 = major impact.

 A = Highest weight (here it is 5)

N =Total number in the sample.