-23.16% is the change from 557 to 428
Calculation steps:
[( 428 - 557 ) ÷ 557] x 100 = -23.16%
Formula
Percentage change = [(428 - 557) / 557] x 100
Subtract the new number by the original number
428 - 557 = -129
-129 ÷ 557 = -0.23159784560143626
-0.23159784560143626 x 100 = -23.16%