-50.29% is the change from 523 to 260
Calculation steps:
[( 260 - 523 ) ÷ 523] x 100 = -50.29%
Formula
Percentage change = [(260 - 523) / 523] x 100
Subtract the new number by the original number
260 - 523 = -263
-263 ÷ 523 = -0.502868068833652
-0.502868068833652 x 100 = -50.29%