-94.63% is the change from 577 to 31
Calculation steps:
[( 31 - 577 ) ÷ 577] x 100 = -94.63%
Formula
Percentage change = [(31 - 577) / 577] x 100
Subtract the new number by the original number
31 - 577 = -546
-546 ÷ 577 = -0.9462738301559792
-0.9462738301559792 x 100 = -94.63%