-87.34% is the change from 561 to 71
Calculation steps:
[( 71 - 561 ) ÷ 561] x 100 = -87.34%
Formula
Percentage change = [(71 - 561) / 561] x 100
Subtract the new number by the original number
71 - 561 = -490
-490 ÷ 561 = -0.8734402852049911
-0.8734402852049911 x 100 = -87.34%