-47.4% is the change from 865 to 455
Calculation steps:
[( 455 - 865 ) ÷ 865] x 100 = -47.4%
Formula
Percentage change = [(455 - 865) / 865] x 100
Subtract the new number by the original number
455 - 865 = -410
-410 ÷ 865 = -0.47398843930635837
-0.47398843930635837 x 100 = -47.4%