-3.51% is the change from 598 to 577
Calculation steps:
[( 577 - 598 ) ÷ 598] x 100 = -3.51%
Formula
Percentage change = [(577 - 598) / 598] x 100
Subtract the new number by the original number
577 - 598 = -21
-21 ÷ 598 = -0.03511705685618729
-0.03511705685618729 x 100 = -3.51%