-77.92% is the change from 557 to 123
Calculation steps:
[( 123 - 557 ) ÷ 557] x 100 = -77.92%
Formula
Percentage change = [(123 - 557) / 557] x 100
Subtract the new number by the original number
123 - 557 = -434
-434 ÷ 557 = -0.7791741472172352
-0.7791741472172352 x 100 = -77.92%