-10.63% is the change from 960 to 858
Calculation steps:
[( 858 - 960 ) ÷ 960] x 100 = -10.63%
Formula
Percentage change = [(858 - 960) / 960] x 100
Subtract the new number by the original number
858 - 960 = -102
-102 ÷ 960 = -0.10625
-0.10625 x 100 = -10.63%