-79.32% is the change from 527 to 109
Calculation steps:
[( 109 - 527 ) ÷ 527] x 100 = -79.32%
Formula
Percentage change = [(109 - 527) / 527] x 100
Subtract the new number by the original number
109 - 527 = -418
-418 ÷ 527 = -0.793168880455408
-0.793168880455408 x 100 = -79.32%