-90.54% is the change from 962 to 91
Calculation steps:
[( 91 - 962 ) ÷ 962] x 100 = -90.54%
Formula
Percentage change = [(91 - 962) / 962] x 100
Subtract the new number by the original number
91 - 962 = -871
-871 ÷ 962 = -0.9054054054054054
-0.9054054054054054 x 100 = -90.54%