-48.96% is the change from 819 to 418
Calculation steps:
[( 418 - 819 ) ÷ 819] x 100 = -48.96%
Formula
Percentage change = [(418 - 819) / 819] x 100
Subtract the new number by the original number
418 - 819 = -401
-401 ÷ 819 = -0.4896214896214896
-0.4896214896214896 x 100 = -48.96%