-21.84% is the change from 577 to 451
Calculation steps:
[( 451 - 577 ) ÷ 577] x 100 = -21.84%
Formula
Percentage change = [(451 - 577) / 577] x 100
Subtract the new number by the original number
451 - 577 = -126
-126 ÷ 577 = -0.21837088388214904
-0.21837088388214904 x 100 = -21.84%