-56.06% is the change from 66 to 29
Calculation steps:
[( 29 - 66 ) ÷ 66] x 100 = -56.06%
Formula
Percentage change = [(29 - 66) / 66] x 100
Subtract the new number by the original number
29 - 66 = -37
-37 ÷ 66 = -0.5606060606060606
-0.5606060606060606 x 100 = -56.06%