-91.36% is the change from 961 to 83
Calculation steps:
[( 83 - 961 ) ÷ 961] x 100 = -91.36%
Formula
Percentage change = [(83 - 961) / 961] x 100
Subtract the new number by the original number
83 - 961 = -878
-878 ÷ 961 = -0.9136316337148803
-0.9136316337148803 x 100 = -91.36%