-91.41% is the change from 966 to 83
Calculation steps:
[( 83 - 966 ) ÷ 966] x 100 = -91.41%
Formula
Percentage change = [(83 - 966) / 966] x 100
Subtract the new number by the original number
83 - 966 = -883
-883 ÷ 966 = -0.9140786749482401
-0.9140786749482401 x 100 = -91.41%