-84.92% is the change from 577 to 87
Calculation steps:
[( 87 - 577 ) ÷ 577] x 100 = -84.92%
Formula
Percentage change = [(87 - 577) / 577] x 100
Subtract the new number by the original number
87 - 577 = -490
-490 ÷ 577 = -0.8492201039861352
-0.8492201039861352 x 100 = -84.92%