-75.33% is the change from 523 to 129
Calculation steps:
[( 129 - 523 ) ÷ 523] x 100 = -75.33%
Formula
Percentage change = [(129 - 523) / 523] x 100
Subtract the new number by the original number
129 - 523 = -394
-394 ÷ 523 = -0.7533460803059273
-0.7533460803059273 x 100 = -75.33%