-1.91% is the change from 577 to 566
Calculation steps:
[( 566 - 577 ) ÷ 577] x 100 = -1.91%
Formula
Percentage change = [(566 - 577) / 577] x 100
Subtract the new number by the original number
566 - 577 = -11
-11 ÷ 577 = -0.019064124783362217
-0.019064124783362217 x 100 = -1.91%