-48.13% is the change from 829 to 430
Calculation steps:
[( 430 - 829 ) ÷ 829] x 100 = -48.13%
Formula
Percentage change = [(430 - 829) / 829] x 100
Subtract the new number by the original number
430 - 829 = -399
-399 ÷ 829 = -0.4813027744270205
-0.4813027744270205 x 100 = -48.13%