-48.96% is the change from 815 to 416
Calculation steps:
[( 416 - 815 ) ÷ 815] x 100 = -48.96%
Formula
Percentage change = [(416 - 815) / 815] x 100
Subtract the new number by the original number
416 - 815 = -399
-399 ÷ 815 = -0.48957055214723927
-0.48957055214723927 x 100 = -48.96%