-72.41% is the change from 29 to 8
Calculation steps:
[( 8 - 29 ) ÷ 29] x 100 = -72.41%
Formula
Percentage change = [(8 - 29) / 29] x 100
Subtract the new number by the original number
8 - 29 = -21
-21 ÷ 29 = -0.7241379310344828
-0.7241379310344828 x 100 = -72.41%