-37.7% is the change from 833 to 519
Calculation steps:
[( 519 - 833 ) ÷ 833] x 100 = -37.7%
Formula
Percentage change = [(519 - 833) / 833] x 100
Subtract the new number by the original number
519 - 833 = -314
-314 ÷ 833 = -0.37695078031212487
-0.37695078031212487 x 100 = -37.7%