-55.1% is the change from 960 to 431
Calculation steps:
[( 431 - 960 ) ÷ 960] x 100 = -55.1%
Formula
Percentage change = [(431 - 960) / 960] x 100
Subtract the new number by the original number
431 - 960 = -529
-529 ÷ 960 = -0.5510416666666667
-0.5510416666666667 x 100 = -55.1%