-42.19% is the change from 960 to 555
Calculation steps:
[( 555 - 960 ) ÷ 960] x 100 = -42.19%
Formula
Percentage change = [(555 - 960) / 960] x 100
Subtract the new number by the original number
555 - 960 = -405
-405 ÷ 960 = -0.421875
-0.421875 x 100 = -42.19%