-97.67% is the change from 129 to 3
Calculation steps:
[( 3 - 129 ) ÷ 129] x 100 = -97.67%
Formula
Percentage change = [(3 - 129) / 129] x 100
Subtract the new number by the original number
3 - 129 = -126
-126 ÷ 129 = -0.9767441860465116
-0.9767441860465116 x 100 = -97.67%