-51.72% is the change from 522 to 252
Calculation steps:
[( 252 - 522 ) ÷ 522] x 100 = -51.72%
Formula
Percentage change = [(252 - 522) / 522] x 100
Subtract the new number by the original number
252 - 522 = -270
-270 ÷ 522 = -0.5172413793103449
-0.5172413793103449 x 100 = -51.72%