-24.13% is the change from 866 to 657
Calculation steps:
[( 657 - 866 ) ÷ 866] x 100 = -24.13%
Formula
Percentage change = [(657 - 866) / 866] x 100
Subtract the new number by the original number
657 - 866 = -209
-209 ÷ 866 = -0.24133949191685913
-0.24133949191685913 x 100 = -24.13%