-87.1% is the change from 527 to 68
Calculation steps:
[( 68 - 527 ) ÷ 527] x 100 = -87.1%
Formula
Percentage change = [(68 - 527) / 527] x 100
Subtract the new number by the original number
68 - 527 = -459
-459 ÷ 527 = -0.8709677419354839
-0.8709677419354839 x 100 = -87.1%