-80.48% is the change from 866 to 169
Calculation steps:
[( 169 - 866 ) ÷ 866] x 100 = -80.48%
Formula
Percentage change = [(169 - 866) / 866] x 100
Subtract the new number by the original number
169 - 866 = -697
-697 ÷ 866 = -0.8048498845265589
-0.8048498845265589 x 100 = -80.48%