-19.03% is the change from 557 to 451
Calculation steps:
[( 451 - 557 ) ÷ 557] x 100 = -19.03%
Formula
Percentage change = [(451 - 557) / 557] x 100
Subtract the new number by the original number
451 - 557 = -106
-106 ÷ 557 = -0.19030520646319568
-0.19030520646319568 x 100 = -19.03%