-61.09% is the change from 866 to 337
Calculation steps:
[( 337 - 866 ) ÷ 866] x 100 = -61.09%
Formula
Percentage change = [(337 - 866) / 866] x 100
Subtract the new number by the original number
337 - 866 = -529
-529 ÷ 866 = -0.6108545034642032
-0.6108545034642032 x 100 = -61.09%