-47.65% is the change from 829 to 434
Calculation steps:
[( 434 - 829 ) ÷ 829] x 100 = -47.65%
Formula
Percentage change = [(434 - 829) / 829] x 100
Subtract the new number by the original number
434 - 829 = -395
-395 ÷ 829 = -0.4764776839565742
-0.4764776839565742 x 100 = -47.65%