-47.92% is the change from 866 to 451
Calculation steps:
[( 451 - 866 ) ÷ 866] x 100 = -47.92%
Formula
Percentage change = [(451 - 866) / 866] x 100
Subtract the new number by the original number
451 - 866 = -415
-415 ÷ 866 = -0.4792147806004619
-0.4792147806004619 x 100 = -47.92%