-40.75% is the change from 557 to 330
Calculation steps:
[( 330 - 557 ) ÷ 557] x 100 = -40.75%
Formula
Percentage change = [(330 - 557) / 557] x 100
Subtract the new number by the original number
330 - 557 = -227
-227 ÷ 557 = -0.40754039497307004
-0.40754039497307004 x 100 = -40.75%