-89.43% is the change from 577 to 61
Calculation steps:
[( 61 - 577 ) ÷ 577] x 100 = -89.43%
Formula
Percentage change = [(61 - 577) / 577] x 100
Subtract the new number by the original number
61 - 577 = -516
-516 ÷ 577 = -0.8942807625649913
-0.8942807625649913 x 100 = -89.43%