-55.81% is the change from 129 to 57
Calculation steps:
[( 57 - 129 ) ÷ 129] x 100 = -55.81%
Formula
Percentage change = [(57 - 129) / 129] x 100
Subtract the new number by the original number
57 - 129 = -72
-72 ÷ 129 = -0.5581395348837209
-0.5581395348837209 x 100 = -55.81%