-76.11% is the change from 519 to 124
Calculation steps:
[( 124 - 519 ) ÷ 519] x 100 = -76.11%
Formula
Percentage change = [(124 - 519) / 519] x 100
Subtract the new number by the original number
124 - 519 = -395
-395 ÷ 519 = -0.7610789980732178
-0.7610789980732178 x 100 = -76.11%