-96.71% is the change from 577 to 19
Calculation steps:
[( 19 - 577 ) ÷ 577] x 100 = -96.71%
Formula
Percentage change = [(19 - 577) / 577] x 100
Subtract the new number by the original number
19 - 577 = -558
-558 ÷ 577 = -0.9670710571923743
-0.9670710571923743 x 100 = -96.71%