-49.46% is the change from 829 to 419
Calculation steps:
[( 419 - 829 ) ÷ 829] x 100 = -49.46%
Formula
Percentage change = [(419 - 829) / 829] x 100
Subtract the new number by the original number
419 - 829 = -410
-410 ÷ 829 = -0.4945717732207479
-0.4945717732207479 x 100 = -49.46%