-90.73% is the change from 960 to 89
Calculation steps:
[( 89 - 960 ) ÷ 960] x 100 = -90.73%
Formula
Percentage change = [(89 - 960) / 960] x 100
Subtract the new number by the original number
89 - 960 = -871
-871 ÷ 960 = -0.9072916666666667
-0.9072916666666667 x 100 = -90.73%