-83.72% is the change from 866 to 141
Calculation steps:
[( 141 - 866 ) ÷ 866] x 100 = -83.72%
Formula
Percentage change = [(141 - 866) / 866] x 100
Subtract the new number by the original number
141 - 866 = -725
-725 ÷ 866 = -0.8371824480369515
-0.8371824480369515 x 100 = -83.72%