-50.48% is the change from 523 to 259
Calculation steps:
[( 259 - 523 ) ÷ 523] x 100 = -50.48%
Formula
Percentage change = [(259 - 523) / 523] x 100
Subtract the new number by the original number
259 - 523 = -264
-264 ÷ 523 = -0.5047801147227533
-0.5047801147227533 x 100 = -50.48%