-89.23% is the change from 195 to 21
Calculation steps:
[( 21 - 195 ) ÷ 195] x 100 = -89.23%
Formula
Percentage change = [(21 - 195) / 195] x 100
Subtract the new number by the original number
21 - 195 = -174
-174 ÷ 195 = -0.8923076923076924
-0.8923076923076924 x 100 = -89.23%