-21.71% is the change from 129 to 101
Calculation steps:
[( 101 - 129 ) ÷ 129] x 100 = -21.71%
Formula
Percentage change = [(101 - 129) / 129] x 100
Subtract the new number by the original number
101 - 129 = -28
-28 ÷ 129 = -0.21705426356589147
-0.21705426356589147 x 100 = -21.71%