-42.49% is the change from 819 to 471
Calculation steps:
[( 471 - 819 ) ÷ 819] x 100 = -42.49%
Formula
Percentage change = [(471 - 819) / 819] x 100
Subtract the new number by the original number
471 - 819 = -348
-348 ÷ 819 = -0.4249084249084249
-0.4249084249084249 x 100 = -42.49%