-93.45% is the change from 519 to 34
Calculation steps:
[( 34 - 519 ) ÷ 519] x 100 = -93.45%
Formula
Percentage change = [(34 - 519) / 519] x 100
Subtract the new number by the original number
34 - 519 = -485
-485 ÷ 519 = -0.9344894026974951
-0.9344894026974951 x 100 = -93.45%