-49.21% is the change from 819 to 416
Calculation steps:
[( 416 - 819 ) ÷ 819] x 100 = -49.21%
Formula
Percentage change = [(416 - 819) / 819] x 100
Subtract the new number by the original number
416 - 819 = -403
-403 ÷ 819 = -0.49206349206349204
-0.49206349206349204 x 100 = -49.21%