-25.71% is the change from 525 to 390
Calculation steps:
[( 390 - 525 ) ÷ 525] x 100 = -25.71%
Formula
Percentage change = [(390 - 525) / 525] x 100
Subtract the new number by the original number
390 - 525 = -135
-135 ÷ 525 = -0.2571428571428571
-0.2571428571428571 x 100 = -25.71%