-47.34% is the change from 866 to 456
Calculation steps:
[( 456 - 866 ) ÷ 866] x 100 = -47.34%
Formula
Percentage change = [(456 - 866) / 866] x 100
Subtract the new number by the original number
456 - 866 = -410
-410 ÷ 866 = -0.47344110854503463
-0.47344110854503463 x 100 = -47.34%