-93.56% is the change from 450 to 29
Calculation steps:
[( 29 - 450 ) ÷ 450] x 100 = -93.56%
Formula
Percentage change = [(29 - 450) / 450] x 100
Subtract the new number by the original number
29 - 450 = -421
-421 ÷ 450 = -0.9355555555555556
-0.9355555555555556 x 100 = -93.56%