-48.5% is the change from 835 to 430
Calculation steps:
[( 430 - 835 ) ÷ 835] x 100 = -48.5%
Formula
Percentage change = [(430 - 835) / 835] x 100
Subtract the new number by the original number
430 - 835 = -405
-405 ÷ 835 = -0.48502994011976047
-0.48502994011976047 x 100 = -48.5%