-70.59% is the change from 527 to 155
Calculation steps:
[( 155 - 527 ) ÷ 527] x 100 = -70.59%
Formula
Percentage change = [(155 - 527) / 527] x 100
Subtract the new number by the original number
155 - 527 = -372
-372 ÷ 527 = -0.7058823529411765
-0.7058823529411765 x 100 = -70.59%