-71.65% is the change from 455 to 129
Calculation steps:
[( 129 - 455 ) ÷ 455] x 100 = -71.65%
Formula
Percentage change = [(129 - 455) / 455] x 100
Subtract the new number by the original number
129 - 455 = -326
-326 ÷ 455 = -0.7164835164835165
-0.7164835164835165 x 100 = -71.65%