-89.32% is the change from 571 to 61
Calculation steps:
[( 61 - 571 ) ÷ 571] x 100 = -89.32%
Formula
Percentage change = [(61 - 571) / 571] x 100
Subtract the new number by the original number
61 - 571 = -510
-510 ÷ 571 = -0.8931698774080561
-0.8931698774080561 x 100 = -89.32%