-86.1% is the change from 525 to 73
Calculation steps:
[( 73 - 525 ) ÷ 525] x 100 = -86.1%
Formula
Percentage change = [(73 - 525) / 525] x 100
Subtract the new number by the original number
73 - 525 = -452
-452 ÷ 525 = -0.8609523809523809
-0.8609523809523809 x 100 = -86.1%