-27.83% is the change from 557 to 402
Calculation steps:
[( 402 - 557 ) ÷ 557] x 100 = -27.83%
Formula
Percentage change = [(402 - 557) / 557] x 100
Subtract the new number by the original number
402 - 557 = -155
-155 ÷ 557 = -0.27827648114901254
-0.27827648114901254 x 100 = -27.83%