-37.77% is the change from 834 to 519
Calculation steps:
[( 519 - 834 ) ÷ 834] x 100 = -37.77%
Formula
Percentage change = [(519 - 834) / 834] x 100
Subtract the new number by the original number
519 - 834 = -315
-315 ÷ 834 = -0.3776978417266187
-0.3776978417266187 x 100 = -37.77%