-55.06% is the change from 959 to 431
Calculation steps:
[( 431 - 959 ) ÷ 959] x 100 = -55.06%
Formula
Percentage change = [(431 - 959) / 959] x 100
Subtract the new number by the original number
431 - 959 = -528
-528 ÷ 959 = -0.5505735140771637
-0.5505735140771637 x 100 = -55.06%