-50.47% is the change from 531 to 263
Calculation steps:
[( 263 - 531 ) ÷ 531] x 100 = -50.47%
Formula
Percentage change = [(263 - 531) / 531] x 100
Subtract the new number by the original number
263 - 531 = -268
-268 ÷ 531 = -0.504708097928437
-0.504708097928437 x 100 = -50.47%