-75.25% is the change from 505 to 125
Calculation steps:
[( 125 - 505 ) ÷ 505] x 100 = -75.25%
Formula
Percentage change = [(125 - 505) / 505] x 100
Subtract the new number by the original number
125 - 505 = -380
-380 ÷ 505 = -0.7524752475247525
-0.7524752475247525 x 100 = -75.25%