-49.65% is the change from 866 to 436
Calculation steps:
[( 436 - 866 ) ÷ 866] x 100 = -49.65%
Formula
Percentage change = [(436 - 866) / 866] x 100
Subtract the new number by the original number
436 - 866 = -430
-430 ÷ 866 = -0.49653579676674364
-0.49653579676674364 x 100 = -49.65%