-88.07% is the change from 176 to 21
Calculation steps:
[( 21 - 176 ) ÷ 176] x 100 = -88.07%
Formula
Percentage change = [(21 - 176) / 176] x 100
Subtract the new number by the original number
21 - 176 = -155
-155 ÷ 176 = -0.8806818181818182
-0.8806818181818182 x 100 = -88.07%