-51.89% is the change from 557 to 268
Calculation steps:
[( 268 - 557 ) ÷ 557] x 100 = -51.89%
Formula
Percentage change = [(268 - 557) / 557] x 100
Subtract the new number by the original number
268 - 557 = -289
-289 ÷ 557 = -0.518850987432675
-0.518850987432675 x 100 = -51.89%