-55.17% is the change from 29 to 13
Calculation steps:
[( 13 - 29 ) ÷ 29] x 100 = -55.17%
Formula
Percentage change = [(13 - 29) / 29] x 100
Subtract the new number by the original number
13 - 29 = -16
-16 ÷ 29 = -0.5517241379310345
-0.5517241379310345 x 100 = -55.17%