-49.7% is the change from 833 to 419
Calculation steps:
[( 419 - 833 ) ÷ 833] x 100 = -49.7%
Formula
Percentage change = [(419 - 833) / 833] x 100
Subtract the new number by the original number
419 - 833 = -414
-414 ÷ 833 = -0.4969987995198079
-0.4969987995198079 x 100 = -49.7%