-1.56% is the change from 577 to 568
Calculation steps:
[( 568 - 577 ) ÷ 577] x 100 = -1.56%
Formula
Percentage change = [(568 - 577) / 577] x 100
Subtract the new number by the original number
568 - 577 = -9
-9 ÷ 577 = -0.01559792027729636
-0.01559792027729636 x 100 = -1.56%