-97.71% is the change from 525 to 12
Calculation steps:
[( 12 - 525 ) ÷ 525] x 100 = -97.71%
Formula
Percentage change = [(12 - 525) / 525] x 100
Subtract the new number by the original number
12 - 525 = -513
-513 ÷ 525 = -0.9771428571428571
-0.9771428571428571 x 100 = -97.71%