-94.75% is the change from 571 to 30
Calculation steps:
[( 30 - 571 ) ÷ 571] x 100 = -94.75%
Formula
Percentage change = [(30 - 571) / 571] x 100
Subtract the new number by the original number
30 - 571 = -541
-541 ÷ 571 = -0.9474605954465849
-0.9474605954465849 x 100 = -94.75%