-71.23% is the change from 577 to 166
Calculation steps:
[( 166 - 577 ) ÷ 577] x 100 = -71.23%
Formula
Percentage change = [(166 - 577) / 577] x 100
Subtract the new number by the original number
166 - 577 = -411
-411 ÷ 577 = -0.7123050259965338
-0.7123050259965338 x 100 = -71.23%