-57.51% is the change from 819 to 348
Calculation steps:
[( 348 - 819 ) ÷ 819] x 100 = -57.51%
Formula
Percentage change = [(348 - 819) / 819] x 100
Subtract the new number by the original number
348 - 819 = -471
-471 ÷ 819 = -0.575091575091575
-0.575091575091575 x 100 = -57.51%