-90% is the change from 960 to 96
Calculation steps:
[( 96 - 960 ) ÷ 960] x 100 = -90%
Formula
Percentage change = [(96 - 960) / 960] x 100
Subtract the new number by the original number
96 - 960 = -864
-864 ÷ 960 = -0.9
-0.9 x 100 = -90%
Example