-86.15% is the change from 527 to 73
Calculation steps:
[( 73 - 527 ) ÷ 527] x 100 = -86.15%
Formula
Percentage change = [(73 - 527) / 527] x 100
Subtract the new number by the original number
73 - 527 = -454
-454 ÷ 527 = -0.8614800759013282
-0.8614800759013282 x 100 = -86.15%