-97.72% is the change from 527 to 12
Calculation steps:
[( 12 - 527 ) ÷ 527] x 100 = -97.72%
Formula
Percentage change = [(12 - 527) / 527] x 100
Subtract the new number by the original number
12 - 527 = -515
-515 ÷ 527 = -0.9772296015180265
-0.9772296015180265 x 100 = -97.72%