-75.96% is the change from 520 to 125
Calculation steps:
[( 125 - 520 ) ÷ 520] x 100 = -75.96%
Formula
Percentage change = [(125 - 520) / 520] x 100
Subtract the new number by the original number
125 - 520 = -395
-395 ÷ 520 = -0.7596153846153846
-0.7596153846153846 x 100 = -75.96%